198732 has 12 divisors (see below), whose sum is σ = 463736. Its totient is φ = 66240.

The previous prime is 198719. The next prime is 198733. The reversal of 198732 is 237891.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 198732.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 198732.

It is not an unprimeable number, because it can be changed into a prime (198733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8269 + ... + 8292.

2¹⁹⁸⁷³² is an apocalyptic number.

198732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198732 is an abundant number, since it is smaller than the sum of its proper divisors (265004).

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

198732 is a wasteful number, since it uses less digits than its factorization.

198732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16568 (or 16566 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 198732 is about 445.7936742485. The cubic root of 198732 is about 58.3565041737.

The spelling of 198732 in words is "one hundred ninety-eight thousand, seven hundred thirty-two".