57742238 has 16 divisors (see below), whose sum is σ = 88560000. Its totient is φ = 28227672.

The previous prime is 57742207. The next prime is 57742247. The reversal of 57742238 is 83224775.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22253 + ... + 24711.

It is an arithmetic number, because the mean of its divisors is an integer number (5535000).

Almost surely, 2^57742238 is an apocalyptic number.

57742238 is a deficient number, since it is larger than the sum of its proper divisors (30817762).

57742238 is a wasteful number, since it uses less digits than its factorization.

57742238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719.

The product of its digits is 94080, while the sum is 38.

The square root of 57742238 is about 7598.8313575181. The cubic root of 57742238 is about 386.5133843820.

The spelling of 57742238 in words is "fifty-seven million, seven hundred forty-two thousand, two hundred thirty-eight".