189311792 has 40 divisors (see below), whose sum is σ = 384892032. Its totient is φ = 90086400.

The previous prime is 189311789. The next prime is 189311803. The reversal of 189311792 is 297113981.

It is a happy number.

189311792 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 27128 + ... + 33384.

Almost surely, 2^189311792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189311792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192446016).

189311792 is an abundant number, since it is smaller than the sum of its proper divisors (195580240).

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

189311792 is a wasteful number, since it uses less digits than its factorization.

189311792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6357 (or 6351 counting only the distinct ones).

The product of its digits is 27216, while the sum is 41.

The square root of 189311792 is about 13759.0621773433. The cubic root of 189311792 is about 574.1947563981.

The spelling of 189311792 in words is "one hundred eighty-nine million, three hundred eleven thousand, seven hundred ninety-two".