Default is 2047 kB/s. If I am able to increase this, would it be advantageous for the network? If I were to increase it, what would be a good number?
You can change them, either when starting monerod:
--limit-rate-up arg (=-1) set limit-rate-up [kB/s]
--limit-rate-down arg (=-1) set limit-rate-down [kB/s]
--limit-rate arg (=-1) set limit-rate [kB/s]
Or at runtime:
limit limit <kB/s> - Set download and upload limit
limit_down limit <kB/s> - Set download limit
limit_up limit <kB/s> - Set upload limit
Which settings are best is really down to your own connection speeds. You'll want to set something that's below your max speed, so your normal Internet use doesn't get wedged.
More bandwidth is advantageous for the network, as it means you can exchange historical blocks after, allowing peers to get up to speed more quickly. Make sure you have incoming connections working (ie, setup port forwarding on your router as appropriate, and check that the monerod
status command gives you a X+Y connections where both X and Y are greater than zero).