57189438 has 48 divisors (see below), whose sum is σ = 127404576. Its totient is φ = 18532800.

The previous prime is 57189427. The next prime is 57189463. The reversal of 57189438 is 83498175.

57189438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 57189393 and 57189402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143856 + ... + 144252.

It is an arithmetic number, because the mean of its divisors is an integer number (2654262).

Almost surely, 2^57189438 is an apocalyptic number.

57189438 is an abundant number, since it is smaller than the sum of its proper divisors (70215138).

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

57189438 is a wasteful number, since it uses less digits than its factorization.

57189438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 606 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 57189438 is about 7562.3698666489. The cubic root of 57189438 is about 385.2759880886.

It can be divided in two parts, 571 and 89438, that added together give a palindrome (90009).

The spelling of 57189438 in words is "fifty-seven million, one hundred eighty-nine thousand, four hundred thirty-eight".