delivering catalog images on white background-72dpi but what pixel x pixel?

[robfilms]

i never shot table top products.

i spent the weekend helping a friend.

the friend put me in touch with his web person who runs the online store.

i asked for deliverable specs.

he said "the dimensions should be 2000x2000px, 72dpi."

is that right?

when i went to preview and was going to adjust the size, it seemed huge.

could 2000x2000px, 72dpi be correct?

(this is not my realm. i'm a motion guy trying to help out a friend!)

any and all info who be appreciated.

rob