57308406 has 16 divisors (see below), whose sum is σ = 117412848. Its totient is φ = 18636800.

The previous prime is 57308399. The next prime is 57308413. The reversal of 57308406 is 60480375.

It is an interprime number because it is at equal distance from previous prime (57308399) and next prime (57308413).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 116235 + ... + 116726.

It is an arithmetic number, because the mean of its divisors is an integer number (7338303).

Almost surely, 2^57308406 is an apocalyptic number.

57308406 is an abundant number, since it is smaller than the sum of its proper divisors (60104442).

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

57308406 is a wasteful number, since it uses less digits than its factorization.

57308406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233007.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 57308406 is about 7570.2315684528. The cubic root of 57308406 is about 385.5429591064.

The spelling of 57308406 in words is "fifty-seven million, three hundred eight thousand, four hundred six".