It has two sections: a saucer and an engineering section...

The saucer is apr. 10,000,000 sq. ft.
The engineering section is split up into 3 parts, a shield generator: 400,000 sq. ft.; engineering: 100,000 sq. ft.; and engines: 500,000 sq. ft.

It is heavily armed... 10 laser cannons, and 250 photon torpedoes(launch from 2 bays, forward and aft) and a 250,000 sq. ft. ion cannon in the forward part of the engineering section...

It can take over 30 fighters in a dog fight, thanks to it's shielding: 8 shield shacks/towers to go along with it's massive shield generator...

The saucer section can hold over 1 million battle droids...