57457932 has 96 divisors (see below), whose sum is σ = 160742400. Its totient is φ = 15628032.

The previous prime is 57457931. The next prime is 57457951. The reversal of 57457932 is 23975475.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (57457931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250794 + ... + 251022.

It is an arithmetic number, because the mean of its divisors is an integer number (1674400).

Almost surely, 2^57457932 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 57457932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80371200).

57457932 is an abundant number, since it is smaller than the sum of its proper divisors (103284468).

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

57457932 is a wasteful number, since it uses less digits than its factorization.

57457932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 373 counting only the distinct ones).

The product of its digits is 264600, while the sum is 42.

The square root of 57457932 is about 7580.1010547354. The cubic root of 57457932 is about 385.8779805289.

The spelling of 57457932 in words is "fifty-seven million, four hundred fifty-seven thousand, nine hundred thirty-two".