57339820 has 24 divisors (see below), whose sum is σ = 120648528. Its totient is φ = 22891200.

The previous prime is 57339811. The next prime is 57339823. The reversal of 57339820 is 2893375.

It is a self number, because there is not a number n which added to its sum of digits gives 57339820.

It is not an unprimeable number, because it can be changed into a prime (57339823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8910 + ... + 13930.

It is an arithmetic number, because the mean of its divisors is an integer number (5027022).

Almost surely, 2^57339820 is an apocalyptic number.

It is an amenable number.

57339820 is an abundant number, since it is smaller than the sum of its proper divisors (63308708).

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

57339820 is a wasteful number, since it uses less digits than its factorization.

57339820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5601 (or 5599 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 57339820 is about 7572.3061216514. The cubic root of 57339820 is about 385.6133922537.

The spelling of 57339820 in words is "fifty-seven million, three hundred thirty-nine thousand, eight hundred twenty".