57438 has 12 divisors (see below), whose sum is σ = 124488. Its totient is φ = 19140.

The previous prime is 57427. The next prime is 57457. The reversal of 57438 is 83475.

57438 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1578 + ... + 1613.

It is an arithmetic number, because the mean of its divisors is an integer number (10374).

2⁵⁷⁴³⁸ is an apocalyptic number.

57438 is an abundant number, since it is smaller than the sum of its proper divisors (67050).

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

57438 is a wasteful number, since it uses less digits than its factorization.

57438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3199 (or 3196 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 57438 is about 239.6622623610. The cubic root of 57438 is about 38.5833355362.

It can be divided in two parts, 574 and 38, that multiplied together give a palindrome (21812).

The spelling of 57438 in words is "fifty-seven thousand, four hundred thirty-eight".