57388632 has 64 divisors (see below), whose sum is σ = 165473280. Its totient is φ = 16246272.

The previous prime is 57388619. The next prime is 57388673. The reversal of 57388632 is 23688375.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17473 + ... + 20495.

It is an arithmetic number, because the mean of its divisors is an integer number (2585520).

Almost surely, 2^57388632 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 57388632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82736640).

57388632 is an abundant number, since it is smaller than the sum of its proper divisors (108084648).

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

57388632 is a wasteful number, since it uses less digits than its factorization.

57388632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152 (or 3148 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 57388632 is about 7575.5284964153. The cubic root of 57388632 is about 385.7227823329.

The spelling of 57388632 in words is "fifty-seven million, three hundred eighty-eight thousand, six hundred thirty-two".