56684290 has 48 divisors (see below), whose sum is σ = 117042408. Its totient is φ = 19688448.

The previous prime is 56684267. The next prime is 56684321. The reversal of 56684290 is 9248665.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 299209 + 56385081 = 547^2 + 7509^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27744 + ... + 29716.

Almost surely, 2^56684290 is an apocalyptic number.

56684290 is an abundant number, since it is smaller than the sum of its proper divisors (60358118).

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

56684290 is a wasteful number, since it uses less digits than its factorization.

56684290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023 (or 2010 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 56684290 is about 7528.8969975688. The cubic root of 56684290 is about 384.1382649160.

The spelling of 56684290 in words is "fifty-six million, six hundred eighty-four thousand, two hundred ninety".