904656040 has 32 divisors (see below), whose sum is σ = 2036556360. Its totient is φ = 361670400.

The previous prime is 904656023. The next prime is 904656061. The reversal of 904656040 is 40656409.

It can be written as a sum of positive squares in 4 ways, for example, as 464747364 + 439908676 = 21558^2 + 20974^2 .

It is a junction number, because it is equal to n+sod(n) for n = 904655987 and 904656005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88810 + ... + 98470.

Almost surely, 2^904656040 is an apocalyptic number.

It is an amenable number.

904656040 is an abundant number, since it is smaller than the sum of its proper divisors (1131900320).

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

904656040 is a wasteful number, since it uses less digits than its factorization.

904656040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12013 (or 12009 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 904656040 is about 30077.5005610506. The cubic root of 904656040 is about 967.1514688047.

The spelling of 904656040 in words is "nine hundred four million, six hundred fifty-six thousand, forty".