57227904 has 128 divisors (see below), whose sum is σ = 175032000. Its totient is φ = 18385920.

The previous prime is 57227897. The next prime is 57227927. The reversal of 57227904 is 40972275.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 99939 + ... + 100509.

Almost surely, 2^57227904 is an apocalyptic number.

57227904 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57227904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87516000).

57227904 is an abundant number, since it is smaller than the sum of its proper divisors (117804096).

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

57227904 is a wasteful number, since it uses less digits than its factorization.

57227904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 57227904 is about 7564.9126895160. The cubic root of 57227904 is about 385.3623484681.

The spelling of 57227904 in words is "fifty-seven million, two hundred twenty-seven thousand, nine hundred four".