189332100 has 72 divisors (see below), whose sum is σ = 608676320. Its totient is φ = 50487840.

The previous prime is 189332089. The next prime is 189332107. The reversal of 189332100 is 1233981.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (189332107) 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 23 ways as a sum of consecutive naturals, for example, 32362 + ... + 37761.

Almost surely, 2^189332100 is an apocalyptic number.

189332100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189332100 is an abundant number, since it is smaller than the sum of its proper divisors (419344220).

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

189332100 is a wasteful number, since it uses less digits than its factorization.

189332100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70146 (or 70133 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 189332100 is about 13759.8001438974. The cubic root of 189332100 is about 574.2152874843.

The spelling of 189332100 in words is "one hundred eighty-nine million, three hundred thirty-two thousand, one hundred".