189239968 has 24 divisors (see below), whose sum is σ = 372999060. Its totient is φ = 94510080.

The previous prime is 189239951. The next prime is 189239987. The reversal of 189239968 is 869932981.

It can be written as a sum of positive squares in 2 ways, for example, as 186377104 + 2862864 = 13652^2 + 1692^2 .

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, 29358 + ... + 35218.

Almost surely, 2^189239968 is an apocalyptic number.

It is an amenable number.

189239968 is a deficient number, since it is larger than the sum of its proper divisors (183759092).

189239968 is a wasteful number, since it uses less digits than its factorization.

189239968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6880 (or 6872 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 55.

The square root of 189239968 is about 13756.4518681236. The cubic root of 189239968 is about 574.1221316197.

The spelling of 189239968 in words is "one hundred eighty-nine million, two hundred thirty-nine thousand, nine hundred sixty-eight".