57639142 has 8 divisors (see below), whose sum is σ = 94318632. Its totient is φ = 26199600.

The previous prime is 57639139. The next prime is 57639151. The reversal of 57639142 is 24193675.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1309959 + ... + 1310002.

It is an arithmetic number, because the mean of its divisors is an integer number (11789829).

Almost surely, 2^57639142 is an apocalyptic number.

57639142 is a deficient number, since it is larger than the sum of its proper divisors (36679490).

57639142 is a wasteful number, since it uses less digits than its factorization.

57639142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619974.

The product of its digits is 45360, while the sum is 37.

The square root of 57639142 is about 7592.0446521342. The cubic root of 57639142 is about 386.2832136302.

The spelling of 57639142 in words is "fifty-seven million, six hundred thirty-nine thousand, one hundred forty-two".