57742842 has 16 divisors (see below), whose sum is σ = 118302912. Its totient is φ = 18778080.

The previous prime is 57742819. The next prime is 57742847. The reversal of 57742842 is 24824775.

It is a self number, because there is not a number n which added to its sum of digits gives 57742842.

It is not an unprimeable number, because it can be changed into a prime (57742847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117118 + ... + 117609.

It is an arithmetic number, because the mean of its divisors is an integer number (7393932).

Almost surely, 2^57742842 is an apocalyptic number.

57742842 is an abundant number, since it is smaller than the sum of its proper divisors (60560070).

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

57742842 is a wasteful number, since it uses less digits than its factorization.

57742842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234773.

The product of its digits is 125440, while the sum is 39.

The square root of 57742842 is about 7598.8711003675. The cubic root of 57742842 is about 386.5147320567.

The spelling of 57742842 in words is "fifty-seven million, seven hundred forty-two thousand, eight hundred forty-two".