556423974 has 24 divisors (see below), whose sum is σ = 1276502760. Its totient is φ = 174564288.

The previous prime is 556423943. The next prime is 556423979. The reversal of 556423974 is 479324655.

556423974 is a `hidden beast` number, since 556 + 4 + 2 + 3 + 97 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556423979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 908884 + ... + 909495.

It is an arithmetic number, because the mean of its divisors is an integer number (53187615).

Almost surely, 2^556423974 is an apocalyptic number.

556423974 is an abundant number, since it is smaller than the sum of its proper divisors (720078786).

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

556423974 is a wasteful number, since it uses less digits than its factorization.

556423974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818404 (or 1818401 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 556423974 is about 23588.6407832245. The cubic root of 556423974 is about 822.4988092603.

The spelling of 556423974 in words is "five hundred fifty-six million, four hundred twenty-three thousand, nine hundred seventy-four".