57431994 has 8 divisors (see below), whose sum is σ = 114864000. Its totient is φ = 19143996.

The previous prime is 57431993. The next prime is 57432007. The reversal of 57431994 is 49913475.

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

57431994 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (57431993) 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, 4785994 + ... + 4786005.

It is an arithmetic number, because the mean of its divisors is an integer number (14358000).

Almost surely, 2^57431994 is an apocalyptic number.

57431994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57431994 is a wasteful number, since it uses less digits than its factorization.

57431994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9572004.

The product of its digits is 136080, while the sum is 42.

The square root of 57431994 is about 7578.3899345441. The cubic root of 57431994 is about 385.8199066815.

The spelling of 57431994 in words is "fifty-seven million, four hundred thirty-one thousand, nine hundred ninety-four".