198789932 has 36 divisors (see below), whose sum is σ = 402527160. Its totient is φ = 85599360.

The previous prime is 198789901. The next prime is 198789961. The reversal of 198789932 is 239987891.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1613 + ... + 20004.

It is an arithmetic number, because the mean of its divisors is an integer number (11181310).

Almost surely, 2^198789932 is an apocalyptic number.

It is an amenable number.

198789932 is an abundant number, since it is smaller than the sum of its proper divisors (203737228).

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

198789932 is a wasteful number, since it uses less digits than its factorization.

198789932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21662 (or 21649 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 56.

The square root of 198789932 is about 14099.2883508353. The cubic root of 198789932 is about 583.6217408852.

It can be divided in two parts, 1987 and 89932, that added together give a palindrome (91919).

The spelling of 198789932 in words is "one hundred ninety-eight million, seven hundred eighty-nine thousand, nine hundred thirty-two".