57284268 has 24 divisors (see below), whose sum is σ = 135496368. Its totient is φ = 18832896.

The previous prime is 57284261. The next prime is 57284273. The reversal of 57284268 is 86248275.

It is a happy number.

57284268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57284261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31821 + ... + 33572.

It is an arithmetic number, because the mean of its divisors is an integer number (5645682).

Almost surely, 2^57284268 is an apocalyptic number.

It is an amenable number.

57284268 is an abundant number, since it is smaller than the sum of its proper divisors (78212100).

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

57284268 is a wasteful number, since it uses less digits than its factorization.

57284268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65473 (or 65471 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 57284268 is about 7568.6371296291. The cubic root of 57284268 is about 385.4888219476.

The spelling of 57284268 in words is "fifty-seven million, two hundred eighty-four thousand, two hundred sixty-eight".