57791418 has 16 divisors (see below), whose sum is σ = 115659360. Its totient is φ = 19251056.

The previous prime is 57791417. The next prime is 57791431. The reversal of 57791418 is 81419775.

It is a self number, because there is not a number n which added to its sum of digits gives 57791418.

It is not an unprimeable number, because it can be changed into a prime (57791417) 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, 12796 + ... + 16712.

It is an arithmetic number, because the mean of its divisors is an integer number (7228710).

Almost surely, 2^57791418 is an apocalyptic number.

57791418 is an abundant number, since it is smaller than the sum of its proper divisors (57867942).

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

57791418 is a wasteful number, since it uses less digits than its factorization.

57791418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6381.

The product of its digits is 70560, while the sum is 42.

The square root of 57791418 is about 7602.0666926830. The cubic root of 57791418 is about 386.6230864809.

The spelling of 57791418 in words is "fifty-seven million, seven hundred ninety-one thousand, four hundred eighteen".