198197792 has 72 divisors (see below), whose sum is σ = 429616656. Its totient is φ = 89945856.

The previous prime is 198197711. The next prime is 198197801. The reversal of 198197792 is 297791891.

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, 362063 + ... + 362609.

It is an arithmetic number, because the mean of its divisors is an integer number (5966898).

Almost surely, 2^198197792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198197792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214808328).

198197792 is an abundant number, since it is smaller than the sum of its proper divisors (231418864).

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

198197792 is a wasteful number, since it uses less digits than its factorization.

198197792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 629 counting only the distinct ones).

The product of its digits is 571536, while the sum is 53.

The square root of 198197792 is about 14078.2737578156. The cubic root of 198197792 is about 583.0416821974.

The spelling of 198197792 in words is "one hundred ninety-eight million, one hundred ninety-seven thousand, seven hundred ninety-two".