189100032 has 104 divisors (see below), whose sum is σ = 550435200. Its totient is φ = 57262080.

The previous prime is 189100013. The next prime is 189100033. The reversal of 189100032 is 230001981.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 189099975 and 189100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189100033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134469 + ... + 135867.

Almost surely, 2^189100032 is an apocalyptic number.

189100032 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 189100032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275217600).

189100032 is an abundant number, since it is smaller than the sum of its proper divisors (361335168).

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

189100032 is a wasteful number, since it uses less digits than its factorization.

189100032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437 (or 1415 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 189100032 is about 13751.3647322729. The cubic root of 189100032 is about 573.9805826532.

The spelling of 189100032 in words is "one hundred eighty-nine million, one hundred thousand, thirty-two".