900040256 has 28 divisors (see below), whose sum is σ = 1790052300. Its totient is φ = 449003520.

The previous prime is 900040213. The next prime is 900040307. The reversal of 900040256 is 652040009.

It can be written as a sum of positive squares in 2 ways, for example, as 520569856 + 379470400 = 22816^2 + 19480^2 .

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, 13076 + ... + 44396.

Almost surely, 2^900040256 is an apocalyptic number.

It is an amenable number.

900040256 is a deficient number, since it is larger than the sum of its proper divisors (890012044).

900040256 is a wasteful number, since it uses less digits than its factorization.

900040256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31782 (or 31772 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 900040256 is about 30000.6709258310. The cubic root of 900040256 is about 965.5037794801.

The spelling of 900040256 in words is "nine hundred million, forty thousand, two hundred fifty-six".