57681416 has 32 divisors (see below), whose sum is σ = 122606400. Its totient is φ = 25220160.

The previous prime is 57681413. The next prime is 57681419. The reversal of 57681416 is 61418675.

It is an interprime number because it is at equal distance from previous prime (57681413) and next prime (57681419).

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 57681416.

It is not an unprimeable number, because it can be changed into a prime (57681413) 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, 12620 + ... + 16571.

It is an arithmetic number, because the mean of its divisors is an integer number (3831450).

Almost surely, 2^57681416 is an apocalyptic number.

It is an amenable number.

57681416 is an abundant number, since it is smaller than the sum of its proper divisors (64924984).

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

57681416 is a wasteful number, since it uses less digits than its factorization.

57681416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29229 (or 29225 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 57681416 is about 7594.8282403225. The cubic root of 57681416 is about 386.3776271683.

The spelling of 57681416 in words is "fifty-seven million, six hundred eighty-one thousand, four hundred sixteen".