57438708 has 12 divisors (see below), whose sum is σ = 134023680. Its totient is φ = 19146232.

The previous prime is 57438707. The next prime is 57438737. The reversal of 57438708 is 80783475.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 57438708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57438707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2393268 + ... + 2393291.

It is an arithmetic number, because the mean of its divisors is an integer number (11168640).

Almost surely, 2^57438708 is an apocalyptic number.

It is an amenable number.

57438708 is an abundant number, since it is smaller than the sum of its proper divisors (76584972).

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

57438708 is a wasteful number, since it uses less digits than its factorization.

57438708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4786566 (or 4786564 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 57438708 is about 7578.8328916793. The cubic root of 57438708 is about 385.8349406590.

The spelling of 57438708 in words is "fifty-seven million, four hundred thirty-eight thousand, seven hundred eight".