189459308 has 12 divisors (see below), whose sum is σ = 331650312. Its totient is φ = 94702080.

The previous prime is 189459293. The next prime is 189459313. The reversal of 189459308 is 803954981.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

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, 22316 + ... + 29612.

It is an arithmetic number, because the mean of its divisors is an integer number (27637526).

Almost surely, 2^189459308 is an apocalyptic number.

It is an amenable number.

189459308 is a deficient number, since it is larger than the sum of its proper divisors (142191004).

189459308 is a wasteful number, since it uses less digits than its factorization.

189459308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13792 (or 13790 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 189459308 is about 13764.4218185872. The cubic root of 189459308 is about 574.3438594932.

The spelling of 189459308 in words is "one hundred eighty-nine million, four hundred fifty-nine thousand, three hundred eight".