389968522 has 8 divisors (see below), whose sum is σ = 585842400. Its totient is φ = 194687724.

The previous prime is 389968487. The next prime is 389968543. The reversal of 389968522 is 225869983.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 389968522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146622 + ... + 149257.

It is an arithmetic number, because the mean of its divisors is an integer number (73230300).

Almost surely, 2^389968522 is an apocalyptic number.

389968522 is a deficient number, since it is larger than the sum of its proper divisors (195873878).

389968522 is a wasteful number, since it uses less digits than its factorization.

389968522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296540.

The product of its digits is 1866240, while the sum is 52.

The square root of 389968522 is about 19747.6206668044. The cubic root of 389968522 is about 730.5947002289.

The spelling of 389968522 in words is "three hundred eighty-nine million, nine hundred sixty-eight thousand, five hundred twenty-two".