57431376 has 80 divisors (see below), whose sum is σ = 173550400. Its totient is φ = 18133632.

The previous prime is 57431369. The next prime is 57431377. The reversal of 57431376 is 67313475.

57431376 is a `hidden beast` number, since 574 + 3 + 13 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 57431376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57431377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4710 + ... + 11706.

It is an arithmetic number, because the mean of its divisors is an integer number (2169380).

Almost surely, 2^57431376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57431376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86775200).

57431376 is an abundant number, since it is smaller than the sum of its proper divisors (116119024).

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

57431376 is a wasteful number, since it uses less digits than its factorization.

57431376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033 (or 7021 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 57431376 is about 7578.3491606022. The cubic root of 57431376 is about 385.8185227980.

The spelling of 57431376 in words is "fifty-seven million, four hundred thirty-one thousand, three hundred seventy-six".