57748790 has 32 divisors (see below), whose sum is σ = 119370240. Its totient is φ = 19893600.

The previous prime is 57748783. The next prime is 57748793. The reversal of 57748790 is 9784775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57748793) 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, 11726 + ... + 15905.

It is an arithmetic number, because the mean of its divisors is an integer number (3730320).

Almost surely, 2^57748790 is an apocalyptic number.

57748790 is an abundant number, since it is smaller than the sum of its proper divisors (61621450).

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

57748790 is a wasteful number, since it uses less digits than its factorization.

57748790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27668.

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 57748790 is about 7599.2624642132. The cubic root of 57748790 is about 386.5280030274.

It can be divided in two parts, 57 and 748790, that added together give a palindrome (748847).

The spelling of 57748790 in words is "fifty-seven million, seven hundred forty-eight thousand, seven hundred ninety".