57400776 has 96 divisors (see below), whose sum is σ = 160923360. Its totient is φ = 18475776.

The previous prime is 57400769. The next prime is 57400787. The reversal of 57400776 is 67700475.

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 57400776.

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, 352071 + ... + 352233.

It is an arithmetic number, because the mean of its divisors is an integer number (1676285).

Almost surely, 2^57400776 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 57400776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80461680).

57400776 is an abundant number, since it is smaller than the sum of its proper divisors (103522584).

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

57400776 is a wasteful number, since it uses less digits than its factorization.

57400776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 57400776 is about 7576.3299822539. The cubic root of 57400776 is about 385.7499879945.

The spelling of 57400776 in words is "fifty-seven million, four hundred thousand, seven hundred seventy-six".