57113784 has 192 divisors, whose sum is σ = 199180800. Its totient is φ = 14370048.

The previous prime is 57113747. The next prime is 57113801. The reversal of 57113784 is 48731175.

57113784 is a `hidden beast` number, since 571 + 1 + 3 + 7 + 84 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 150507 + ... + 150885.

It is an arithmetic number, because the mean of its divisors is an integer number (1037400).

Almost surely, 2^57113784 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 57113784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99590400).

57113784 is an abundant number, since it is smaller than the sum of its proper divisors (142067016).

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

57113784 is a wasteful number, since it uses less digits than its factorization.

57113784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 427 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 57113784 is about 7557.3662078796. The cubic root of 57113784 is about 385.1060235351.

The spelling of 57113784 in words is "fifty-seven million, one hundred thirteen thousand, seven hundred eighty-four".