57043660 has 48 divisors (see below), whose sum is σ = 123076800. Its totient is φ = 22201344.

The previous prime is 57043621. The next prime is 57043661. The reversal of 57043660 is 6634075.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (57043661) 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, 129721 + ... + 130159.

It is an arithmetic number, because the mean of its divisors is an integer number (2564100).

Almost surely, 2^57043660 is an apocalyptic number.

It is an amenable number.

57043660 is an abundant number, since it is smaller than the sum of its proper divisors (66033140).

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

57043660 is a wasteful number, since it uses less digits than its factorization.

57043660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 57043660 is about 7552.7253359301. The cubic root of 57043660 is about 384.9483486114.

The spelling of 57043660 in words is "fifty-seven million, forty-three thousand, six hundred sixty".