57189490 has 16 divisors (see below), whose sum is σ = 104182848. Its totient is φ = 22599856.

The previous prime is 57189481. The next prime is 57189493. The reversal of 57189490 is 9498175.

It is not an unprimeable number, because it can be changed into a prime (57189493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33622 + ... + 35281.

It is an arithmetic number, because the mean of its divisors is an integer number (6511428).

Almost surely, 2^57189490 is an apocalyptic number.

57189490 is a deficient number, since it is larger than the sum of its proper divisors (46993358).

57189490 is a wasteful number, since it uses less digits than its factorization.

57189490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68993.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 57189490 is about 7562.3733047239. The cubic root of 57189490 is about 385.2761048604.

The spelling of 57189490 in words is "fifty-seven million, one hundred eighty-nine thousand, four hundred ninety".