57842320 has 20 divisors (see below), whose sum is σ = 134483580. Its totient is φ = 23136896.

The previous prime is 57842297. The next prime is 57842333. The reversal of 57842320 is 2324875.

It can be written as a sum of positive squares in 2 ways, for example, as 44997264 + 12845056 = 6708^2 + 3584^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 361435 + ... + 361594.

It is an arithmetic number, because the mean of its divisors is an integer number (6724179).

Almost surely, 2^57842320 is an apocalyptic number.

It is an amenable number.

57842320 is an abundant number, since it is smaller than the sum of its proper divisors (76641260).

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

57842320 is a wasteful number, since it uses less digits than its factorization.

57842320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723042 (or 723036 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 57842320 is about 7605.4138611913. The cubic root of 57842320 is about 386.7365641904.

The spelling of 57842320 in words is "fifty-seven million, eight hundred forty-two thousand, three hundred twenty".