57323826 has 72 divisors (see below), whose sum is σ = 146113344. Its totient is φ = 16193520.

The previous prime is 57323821. The next prime is 57323837. The reversal of 57323826 is 62832375.

57323826 is a `hidden beast` number, since 573 + 2 + 3 + 82 + 6 = 666.

57323826 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

Its product of digits (60480) is a multiple of the sum of its prime factors (756).

It is not an unprimeable number, because it can be changed into a prime (57323821) 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 35 ways as a sum of consecutive naturals, for example, 90531 + ... + 91161.

It is an arithmetic number, because the mean of its divisors is an integer number (2029352).

Almost surely, 2^57323826 is an apocalyptic number.

57323826 is the 3786-th decagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57323826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73056672).

57323826 is an abundant number, since it is smaller than the sum of its proper divisors (88789518).

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

57323826 is a wasteful number, since it uses less digits than its factorization.

57323826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 746 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 57323826 is about 7571.2499628529. The cubic root of 57323826 is about 385.5775354144.

The spelling of 57323826 in words is "fifty-seven million, three hundred twenty-three thousand, eight hundred twenty-six".