57284736 has 64 divisors (see below), whose sum is σ = 153040800. Its totient is φ = 18984960.

The previous prime is 57284699. The next prime is 57284741. The reversal of 57284736 is 63748275.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92235 + ... + 92853.

Almost surely, 2^57284736 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 57284736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76520400).

57284736 is an abundant number, since it is smaller than the sum of its proper divisors (95756064).

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

57284736 is a wasteful number, since it uses less digits than its factorization.

57284736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 865 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 57284736 is about 7568.6680466248. The cubic root of 57284736 is about 385.4898717313.

The spelling of 57284736 in words is "fifty-seven million, two hundred eighty-four thousand, seven hundred thirty-six".