57427400 has 24 divisors (see below), whose sum is σ = 133519170. Its totient is φ = 22970880.

The previous prime is 57427399. The next prime is 57427423. The reversal of 57427400 is 472475.

It can be written as a sum of positive squares in 3 ways, for example, as 23251684 + 34175716 = 4822^2 + 5846^2 .

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, 143369 + ... + 143768.

Almost surely, 2^57427400 is an apocalyptic number.

57427400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57427400 is an abundant number, since it is smaller than the sum of its proper divisors (76091770).

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

57427400 is a wasteful number, since it uses less digits than its factorization.

57427400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287153 (or 287144 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 57427400 is about 7578.0868298008. The cubic root of 57427400 is about 385.8096191292.

Adding to 57427400 its reverse (472475), we get a palindrome (57899875).

The spelling of 57427400 in words is "fifty-seven million, four hundred twenty-seven thousand, four hundred".