57147336 has 128 divisors (see below), whose sum is σ = 171072000. Its totient is φ = 17611776.

The previous prime is 57147329. The next prime is 57147367. The reversal of 57147336 is 63374175.

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 57147336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289990 + ... + 290186.

It is an arithmetic number, because the mean of its divisors is an integer number (1336500).

Almost surely, 2^57147336 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 57147336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85536000).

57147336 is an abundant number, since it is smaller than the sum of its proper divisors (113924664).

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

57147336 is a wasteful number, since it uses less digits than its factorization.

57147336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 298 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 57147336 is about 7559.5857029337. The cubic root of 57147336 is about 385.1814200916.

The spelling of 57147336 in words is "fifty-seven million, one hundred forty-seven thousand, three hundred thirty-six".