557634738 has 16 divisors (see below), whose sum is σ = 1117176480. Its totient is φ = 185560416.

The previous prime is 557634713. The next prime is 557634739. The reversal of 557634738 is 837436755.

It is not an unprimeable number, because it can be changed into a prime (557634739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75643 + ... + 82686.

It is an arithmetic number, because the mean of its divisors is an integer number (69823530).

Almost surely, 2^557634738 is an apocalyptic number.

557634738 is an abundant number, since it is smaller than the sum of its proper divisors (559541742).

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

557634738 is a wasteful number, since it uses less digits than its factorization.

557634738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158921.

The product of its digits is 2116800, while the sum is 48.

The square root of 557634738 is about 23614.2909696650. The cubic root of 557634738 is about 823.0949556947.

The spelling of 557634738 in words is "five hundred fifty-seven million, six hundred thirty-four thousand, seven hundred thirty-eight".