189361968 has 40 divisors (see below), whose sum is σ = 492135168. Its totient is φ = 62740032.

The previous prime is 189361957. The next prime is 189361993. The reversal of 189361968 is 869163981.

189361968 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 189361968.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3796 + ... + 19827.

Almost surely, 2^189361968 is an apocalyptic number.

It is an amenable number.

189361968 is an abundant number, since it is smaller than the sum of its proper divisors (302773200).

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

189361968 is a wasteful number, since it uses less digits than its factorization.

189361968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23801 (or 23795 counting only the distinct ones).

The product of its digits is 559872, while the sum is 51.

The square root of 189361968 is about 13760.8854366280. The cubic root of 189361968 is about 574.2454809212.

The spelling of 189361968 in words is "one hundred eighty-nine million, three hundred sixty-one thousand, nine hundred sixty-eight".