57740 has 12 divisors (see below), whose sum is σ = 121296. Its totient is φ = 23088.

The previous prime is 57737. The next prime is 57751. The reversal of 57740 is 4775.

It is a happy number.

It is an Ulam number.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1424 + ... + 1463.

It is an arithmetic number, because the mean of its divisors is an integer number (10108).

2⁵⁷⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

57740 is an abundant number, since it is smaller than the sum of its proper divisors (63556).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60648).

57740 is a wasteful number, since it uses less digits than its factorization.

57740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896 (or 2894 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 57740 is about 240.2914896537. The cubic root of 57740 is about 38.6508390763.

It can be divided in two parts, 57 and 740, that added together give a palindrome (797).

The spelling of 57740 in words is "fifty-seven thousand, seven hundred forty".