2904561256 has 24 divisors (see below), whose sum is σ = 5693140530. Its totient is φ = 1389135968.

The previous prime is 2904561239. The next prime is 2904561263. The reversal of 2904561256 is 6521654092.

It can be written as a sum of positive squares in only one way, i.e., 2427138756 + 477422500 = 49266^2 + 21850^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 338935 + ... + 347398.

Almost surely, 2^2904561256 is an apocalyptic number.

It is an amenable number.

2904561256 is a deficient number, since it is larger than the sum of its proper divisors (2788579274).

2904561256 is a wasteful number, since it uses less digits than its factorization.

2904561256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686385 (or 686358 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 2904561256 is about 53893.9816306051. The cubic root of 2904561256 is about 1426.7904046848.

The spelling of 2904561256 in words is "two billion, nine hundred four million, five hundred sixty-one thousand, two hundred fifty-six".