557972838 has 12 divisors (see below), whose sum is σ = 1208941188. Its totient is φ = 185990940.

The previous prime is 557972803. The next prime is 557972879. The reversal of 557972838 is 838279755.

557972838 is a `hidden beast` number, since 557 + 9 + 7 + 2 + 83 + 8 = 666.

557972838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×557972838² = 622667375891548488, which contains 22 as substring.

It is a congruent number.

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, 15499228 + ... + 15499263.

It is an arithmetic number, because the mean of its divisors is an integer number (100745099).

Almost surely, 2^557972838 is an apocalyptic number.

557972838 is an abundant number, since it is smaller than the sum of its proper divisors (650968350).

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

557972838 is a wasteful number, since it uses less digits than its factorization.

557972838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30998499 (or 30998496 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 557972838 is about 23621.4486854638. The cubic root of 557972838 is about 823.2612725573.

The spelling of 557972838 in words is "five hundred fifty-seven million, nine hundred seventy-two thousand, eight hundred thirty-eight".