189328392 has 96 divisors (see below), whose sum is σ = 562049280. Its totient is φ = 57098880.

The previous prime is 189328357. The next prime is 189328393. The reversal of 189328392 is 293823981.

189328392 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189328393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218953 + ... + 219815.

It is an arithmetic number, because the mean of its divisors is an integer number (5854680).

Almost surely, 2^189328392 is an apocalyptic number.

189328392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189328392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281024640).

189328392 is an abundant number, since it is smaller than the sum of its proper divisors (372720888).

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

189328392 is a wasteful number, since it uses less digits than its factorization.

189328392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163 (or 1156 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 189328392 is about 13759.6654029086. The cubic root of 189328392 is about 574.2115388610.

The spelling of 189328392 in words is "one hundred eighty-nine million, three hundred twenty-eight thousand, three hundred ninety-two".