How do I turn off the email on a wp blog?

I do not want wordpress to send me emails?

Example like this

A user tried to go to mydomain.com received a 404 (page not found) error. It wasn't their fault, so try fixing it.
They came from mydomain.com

I also do not want emails when a comment is left.

Would like everything turned off.

Thanks in Advance.

(Side note)
Did the same guy that invented e-mail invent the coin machine? LOL

Butterflies Forever