557431400 has 24 divisors (see below), whose sum is σ = 1296028470. Its totient is φ = 222972480.

The previous prime is 557431387. The next prime is 557431447. The reversal of 557431400 is 4134755.

It can be written as a sum of positive squares in 3 ways, for example, as 505620196 + 51811204 = 22486^2 + 7198^2 .

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, 1393379 + ... + 1393778.

Almost surely, 2^557431400 is an apocalyptic number.

557431400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

557431400 is an abundant number, since it is smaller than the sum of its proper divisors (738597070).

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

557431400 is a wasteful number, since it uses less digits than its factorization.

557431400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787173 (or 2787164 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 557431400 is about 23609.9851757683. The cubic root of 557431400 is about 822.9948980657.

The spelling of 557431400 in words is "five hundred fifty-seven million, four hundred thirty-one thousand, four hundred".