57328776 has 128 divisors (see below), whose sum is σ = 171120000. Its totient is φ = 17729280.

The previous prime is 57328771. The next prime is 57328813. The reversal of 57328776 is 67782375.

57328776 is a `hidden beast` number, since 573 + 2 + 8 + 7 + 76 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (57328771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250230 + ... + 250458.

It is an arithmetic number, because the mean of its divisors is an integer number (1336875).

Almost surely, 2^57328776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57328776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85560000).

57328776 is an abundant number, since it is smaller than the sum of its proper divisors (113791224).

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

57328776 is a wasteful number, since it uses less digits than its factorization.

57328776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 314 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 57328776 is about 7571.5768503001. The cubic root of 57328776 is about 385.5886334982.

The spelling of 57328776 in words is "fifty-seven million, three hundred twenty-eight thousand, seven hundred seventy-six".