57347790 has 48 divisors (see below), whose sum is σ = 142607088. Its totient is φ = 14758912.

The previous prime is 57347777. The next prime is 57347791. The reversal of 57347790 is 9774375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57347791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24094 + ... + 26366.

It is an arithmetic number, because the mean of its divisors is an integer number (2970981).

Almost surely, 2^57347790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57347790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71303544).

57347790 is an abundant number, since it is smaller than the sum of its proper divisors (85259298).

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

57347790 is a wasteful number, since it uses less digits than its factorization.

57347790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341 (or 2312 counting only the distinct ones).

The product of its (nonzero) digits is 185220, while the sum is 42.

The square root of 57347790 is about 7572.8323631254. The cubic root of 57347790 is about 385.6312576530.

The spelling of 57347790 in words is "fifty-seven million, three hundred forty-seven thousand, seven hundred ninety".