57403760 has 80 divisors (see below), whose sum is σ = 139946400. Its totient is φ = 21869568.

The previous prime is 57403751. The next prime is 57403763. The reversal of 57403760 is 6730475.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57403763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252767 + ... + 252993.

It is an arithmetic number, because the mean of its divisors is an integer number (1749330).

Almost surely, 2^57403760 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 57403760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69973200).

57403760 is an abundant number, since it is smaller than the sum of its proper divisors (82542640).

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

57403760 is a wasteful number, since it uses less digits than its factorization.

57403760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 57403760 is about 7576.5269088151. The cubic root of 57403760 is about 385.7566723293.

The spelling of 57403760 in words is "fifty-seven million, four hundred three thousand, seven hundred sixty".