57303644 has 12 divisors (see below), whose sum is σ = 101925768. Its totient is φ = 28182000.

The previous prime is 57303643. The next prime is 57303647. The reversal of 57303644 is 44630375.

57303644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 57303644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57303643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117182 + ... + 117669.

It is an arithmetic number, because the mean of its divisors is an integer number (8493814).

Almost surely, 2^57303644 is an apocalyptic number.

It is an amenable number.

57303644 is a deficient number, since it is larger than the sum of its proper divisors (44622124).

57303644 is a wasteful number, since it uses less digits than its factorization.

57303644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234916 (or 234914 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 57303644 is about 7569.9170404965. The cubic root of 57303644 is about 385.5322800074.

The spelling of 57303644 in words is "fifty-seven million, three hundred three thousand, six hundred forty-four".