198568192 has 36 divisors (see below), whose sum is σ = 398181420. Its totient is φ = 98828288.

The previous prime is 198568187. The next prime is 198568193. The reversal of 198568192 is 291865891.

It can be written as a sum of positive squares in 2 ways, for example, as 58003456 + 140564736 = 7616^2 + 11856^2 .

It is not an unprimeable number, because it can be changed into a prime (198568193) 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 3 ways as a sum of consecutive naturals, for example, 57984 + ... + 61312.

It is an arithmetic number, because the mean of its divisors is an integer number (11060595).

Almost surely, 2^198568192 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 198568192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199090710).

198568192 is an abundant number, since it is smaller than the sum of its proper divisors (199613228).

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

198568192 is an equidigital number, since it uses as much as digits as its factorization.

198568192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578 (or 3564 counting only the distinct ones).

The product of its digits is 311040, while the sum is 49.

The square root of 198568192 is about 14091.4226393221. The cubic root of 198568192 is about 583.4046600855.

The spelling of 198568192 in words is "one hundred ninety-eight million, five hundred sixty-eight thousand, one hundred ninety-two".