57640418 has 8 divisors (see below), whose sum is σ = 94320720. Its totient is φ = 26200180.

The previous prime is 57640417. The next prime is 57640447. The reversal of 57640418 is 81404675.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (57640411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1309988 + ... + 1310031.

It is an arithmetic number, because the mean of its divisors is an integer number (11790090).

Almost surely, 2^57640418 is an apocalyptic number.

57640418 is a deficient number, since it is larger than the sum of its proper divisors (36680302).

57640418 is a wasteful number, since it uses less digits than its factorization.

57640418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620032.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 57640418 is about 7592.1286870021. The cubic root of 57640418 is about 386.2860640876.

The spelling of 57640418 in words is "fifty-seven million, six hundred forty thousand, four hundred eighteen".