557634784 has 24 divisors (see below), whose sum is σ = 1254678768. Its totient is φ = 238986240.

The previous prime is 557634761. The next prime is 557634787. The reversal of 557634784 is 487436755.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557634787) 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 3 ways as a sum of consecutive naturals, for example, 1244497 + ... + 1244944.

It is an arithmetic number, because the mean of its divisors is an integer number (52278282).

Almost surely, 2^557634784 is an apocalyptic number.

It is an amenable number.

557634784 is an abundant number, since it is smaller than the sum of its proper divisors (697043984).

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

557634784 is a wasteful number, since it uses less digits than its factorization.

557634784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489458 (or 2489450 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 49.

The square root of 557634784 is about 23614.2919436514. The cubic root of 557634784 is about 823.0949783274.

The spelling of 557634784 in words is "five hundred fifty-seven million, six hundred thirty-four thousand, seven hundred eighty-four".