57739242 has 32 divisors (see below), whose sum is σ = 133389504. Its totient is φ = 16467200.

The previous prime is 57739237. The next prime is 57739247. The reversal of 57739242 is 24293775.

It is an interprime number because it is at equal distance from previous prime (57739237) and next prime (57739247).

It is a self number, because there is not a number n which added to its sum of digits gives 57739242.

It is not an unprimeable number, because it can be changed into a prime (57739247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24609 + ... + 26852.

It is an arithmetic number, because the mean of its divisors is an integer number (4168422).

Almost surely, 2^57739242 is an apocalyptic number.

57739242 is an abundant number, since it is smaller than the sum of its proper divisors (75650262).

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

57739242 is a wasteful number, since it uses less digits than its factorization.

57739242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51494.

The product of its digits is 105840, while the sum is 39.

The square root of 57739242 is about 7598.6342193844. The cubic root of 57739242 is about 386.5066994192.

The spelling of 57739242 in words is "fifty-seven million, seven hundred thirty-nine thousand, two hundred forty-two".