57438838 has 4 divisors (see below), whose sum is σ = 86158260. Its totient is φ = 28719418.

The previous prime is 57438811. The next prime is 57438847. The reversal of 57438838 is 83883475.

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

It is a super-2 number, since 2×57438838² = 6598440221580488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14359708 + ... + 14359711.

It is an arithmetic number, because the mean of its divisors is an integer number (21539565).

Almost surely, 2^57438838 is an apocalyptic number.

57438838 is a deficient number, since it is larger than the sum of its proper divisors (28719422).

57438838 is a wasteful number, since it uses less digits than its factorization.

57438838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28719421.

The product of its digits is 645120, while the sum is 46.

The square root of 57438838 is about 7578.8414681929. The cubic root of 57438838 is about 385.8352317432.

The spelling of 57438838 in words is "fifty-seven million, four hundred thirty-eight thousand, eight hundred thirty-eight".