57308448 has 24 divisors (see below), whose sum is σ = 150434928. Its totient is φ = 19102784.

The previous prime is 57308443. The next prime is 57308467. The reversal of 57308448 is 84480375.

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

It is not an unprimeable number, because it can be changed into a prime (57308441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298386 + ... + 298577.

It is an arithmetic number, because the mean of its divisors is an integer number (6268122).

Almost surely, 2^57308448 is an apocalyptic number.

It is an amenable number.

57308448 is an abundant number, since it is smaller than the sum of its proper divisors (93126480).

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

57308448 is a wasteful number, since it uses less digits than its factorization.

57308448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596976 (or 596968 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 57308448 is about 7570.2343424758. The cubic root of 57308448 is about 385.5430532915.

It can be divided in two parts, 57 and 308448, that added together give a triangular number (308505 = T₇₈₅).

The spelling of 57308448 in words is "fifty-seven million, three hundred eight thousand, four hundred forty-eight".