557863840 has 48 divisors (see below), whose sum is σ = 1395486792. Its totient is φ = 210018304.

The previous prime is 557863829. The next prime is 557863927. The reversal of 557863840 is 48368755.

It can be written as a sum of positive squares in 4 ways, for example, as 499433104 + 58430736 = 22348^2 + 7644^2 .

It is a super-2 number, since 2×557863840² = 622424127959091200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99829 + ... + 105268.

Almost surely, 2^557863840 is an apocalyptic number.

It is an amenable number.

557863840 is an abundant number, since it is smaller than the sum of its proper divisors (837622952).

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

557863840 is a wasteful number, since it uses less digits than its factorization.

557863840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205129 (or 205121 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The square root of 557863840 is about 23619.1413899828. The cubic root of 557863840 is about 823.2076620171.

The spelling of 557863840 in words is "five hundred fifty-seven million, eight hundred sixty-three thousand, eight hundred forty".