57290616 has 24 divisors (see below), whose sum is σ = 155162280. Its totient is φ = 19096848.

The previous prime is 57290591. The next prime is 57290617. The reversal of 57290616 is 61609275.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (36) 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 (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57290617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 397780 + ... + 397923.

It is an arithmetic number, because the mean of its divisors is an integer number (6465095).

Almost surely, 2^57290616 is an apocalyptic number.

It is an amenable number.

57290616 is an abundant number, since it is smaller than the sum of its proper divisors (97871664).

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

57290616 is a wasteful number, since it uses less digits than its factorization.

57290616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795715 (or 795708 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 57290616 is about 7569.0564801698. The cubic root of 57290616 is about 385.5030608346.

The spelling of 57290616 in words is "fifty-seven million, two hundred ninety thousand, six hundred sixteen".