57404172 has 96 divisors (see below), whose sum is σ = 164989440. Its totient is φ = 15160320.

The previous prime is 57404167. The next prime is 57404177. The reversal of 57404172 is 27140475.

It is an interprime number because it is at equal distance from previous prime (57404167) and next prime (57404177).

It is not an unprimeable number, because it can be changed into a prime (57404177) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86779 + ... + 87437.

It is an arithmetic number, because the mean of its divisors is an integer number (1718640).

Almost surely, 2^57404172 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 57404172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82494720).

57404172 is an abundant number, since it is smaller than the sum of its proper divisors (107585268).

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

57404172 is a wasteful number, since it uses less digits than its factorization.

57404172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 57404172 is about 7576.5540980052. The cubic root of 57404172 is about 385.7575952152.

The spelling of 57404172 in words is "fifty-seven million, four hundred four thousand, one hundred seventy-two".