57403296 has 144 divisors (see below), whose sum is σ = 175593600. Its totient is φ = 18240768.

The previous prime is 57403279. The next prime is 57403337. The reversal of 57403296 is 69230475.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a self number, because there is not a number n which added to its sum of digits gives 57403296.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 726585 + ... + 726663.

It is an arithmetic number, because the mean of its divisors is an integer number (1219400).

Almost surely, 2^57403296 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 57403296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87796800).

57403296 is an abundant number, since it is smaller than the sum of its proper divisors (118190304).

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

57403296 is a wasteful number, since it uses less digits than its factorization.

57403296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 57403296 is about 7576.4962878629. The cubic root of 57403296 is about 385.7556329573.

The spelling of 57403296 in words is "fifty-seven million, four hundred three thousand, two hundred ninety-six".