189091032 has 64 divisors (see below), whose sum is σ = 510908160. Its totient is φ = 57974400.

The previous prime is 189091031. The next prime is 189091039. The reversal of 189091032 is 230190981.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 189090984 and 189091002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189091031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102357 + ... + 104187.

It is an arithmetic number, because the mean of its divisors is an integer number (7982940).

Almost surely, 2^189091032 is an apocalyptic number.

189091032 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 189091032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255454080).

189091032 is an abundant number, since it is smaller than the sum of its proper divisors (321817128).

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

189091032 is a wasteful number, since it uses less digits than its factorization.

189091032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184 (or 2180 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 189091032 is about 13751.0374881316. The cubic root of 189091032 is about 573.9714765254.

The spelling of 189091032 in words is "one hundred eighty-nine million, ninety-one thousand, thirty-two".