57489238 has 4 divisors (see below), whose sum is σ = 86233860. Its totient is φ = 28744618.

The previous prime is 57489233. The next prime is 57489239. The reversal of 57489238 is 83298475.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57489233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14372308 + ... + 14372311.

It is an arithmetic number, because the mean of its divisors is an integer number (21558465).

Almost surely, 2^57489238 is an apocalyptic number.

57489238 is a deficient number, since it is larger than the sum of its proper divisors (28744622).

57489238 is a wasteful number, since it uses less digits than its factorization.

57489238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28744621.

The product of its digits is 483840, while the sum is 46.

The square root of 57489238 is about 7582.1657855787. The cubic root of 57489238 is about 385.9480497796.

The spelling of 57489238 in words is "fifty-seven million, four hundred eighty-nine thousand, two hundred thirty-eight".