198239964 has 48 divisors (see below), whose sum is σ = 499541280. Its totient is φ = 60825600.

The previous prime is 198239963. The next prime is 198239971. The reversal of 198239964 is 469932891.

198239964 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198239963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60972 + ... + 64140.

It is an arithmetic number, because the mean of its divisors is an integer number (10407110).

Almost surely, 2^198239964 is an apocalyptic number.

It is an amenable number.

198239964 is an abundant number, since it is smaller than the sum of its proper divisors (301301316).

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

198239964 is a wasteful number, since it uses less digits than its factorization.

198239964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3590 (or 3588 counting only the distinct ones).

The product of its digits is 839808, while the sum is 51.

The square root of 198239964 is about 14079.7714470086. The cubic root of 198239964 is about 583.0830319519.

The spelling of 198239964 in words is "one hundred ninety-eight million, two hundred thirty-nine thousand, nine hundred sixty-four".