57765340 has 24 divisors (see below), whose sum is σ = 124130160. Its totient is φ = 22568448.

The previous prime is 57765317. The next prime is 57765347. The reversal of 57765340 is 4356775.

It is a self number, because there is not a number n which added to its sum of digits gives 57765340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57765347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32725 + ... + 34444.

It is an arithmetic number, because the mean of its divisors is an integer number (5172090).

Almost surely, 2^57765340 is an apocalyptic number.

It is an amenable number.

57765340 is an abundant number, since it is smaller than the sum of its proper divisors (66364820).

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

57765340 is a wasteful number, since it uses less digits than its factorization.

57765340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67221 (or 67219 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 57765340 is about 7600.3513076699. The cubic root of 57765340 is about 386.5649240172.

The spelling of 57765340 in words is "fifty-seven million, seven hundred sixty-five thousand, three hundred forty".