57400128 has 84 divisors (see below), whose sum is σ = 165628320. Its totient is φ = 19005696.

The previous prime is 57400117. The next prime is 57400129. The reversal of 57400128 is 82100475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57400129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130533 + ... + 130971.

Almost surely, 2^57400128 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 57400128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82814160).

57400128 is an abundant number, since it is smaller than the sum of its proper divisors (108228192).

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

57400128 is a wasteful number, since it uses less digits than its factorization.

57400128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 57400128 is about 7576.2872173645. The cubic root of 57400128 is about 385.7485364059.

The spelling of 57400128 in words is "fifty-seven million, four hundred thousand, one hundred twenty-eight".