2780512 has 24 divisors (see below), whose sum is σ = 6256656. Its totient is φ = 1191552.

The previous prime is 2780507. The next prime is 2780521. The reversal of 2780512 is 2150872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5983 + ... + 6430.

It is an arithmetic number, because the mean of its divisors is an integer number (260694).

2^2780512 is an apocalyptic number.

It is an amenable number.

2780512 is an abundant number, since it is smaller than the sum of its proper divisors (3476144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2780512 is a wasteful number, since it uses less digits than its factorization.

2780512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12430 (or 12422 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2780512 is about 1667.4867315814. The cubic root of 2780512 is about 140.6182184055.

The spelling of 2780512 in words is "two million, seven hundred eighty thousand, five hundred twelve".