57326028 has 48 divisors (see below), whose sum is σ = 140340480. Its totient is φ = 18177984.

The previous prime is 57325991. The next prime is 57326029. The reversal of 57326028 is 82062375.

It is a self number, because there is not a number n which added to its sum of digits gives 57326028.

It is not an unprimeable number, because it can be changed into a prime (57326029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62751 + ... + 63657.

It is an arithmetic number, because the mean of its divisors is an integer number (2923760).

Almost surely, 2^57326028 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 57326028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70170240).

57326028 is an abundant number, since it is smaller than the sum of its proper divisors (83014452).

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

57326028 is a wasteful number, since it uses less digits than its factorization.

57326028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166 (or 1164 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 57326028 is about 7571.3953799812. The cubic root of 57326028 is about 385.5824724590.

The spelling of 57326028 in words is "fifty-seven million, three hundred twenty-six thousand, twenty-eight".