198663192 has 192 divisors, whose sum is σ = 687348480. Its totient is φ = 52348032.

The previous prime is 198663187. The next prime is 198663229. The reversal of 198663192 is 291366891.

It is a happy number.

198663192 is a `hidden beast` number, since 1 + 9 + 8 + 6 + 631 + 9 + 2 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 176343 + ... + 177465.

It is an arithmetic number, because the mean of its divisors is an integer number (3579940).

Almost surely, 2^198663192 is an apocalyptic number.

198663192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198663192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343674240).

198663192 is an abundant number, since it is smaller than the sum of its proper divisors (488685288).

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

198663192 is a wasteful number, since it uses less digits than its factorization.

198663192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164 (or 1148 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 198663192 is about 14094.7930811346. The cubic root of 198663192 is about 583.4976837227.

The spelling of 198663192 in words is "one hundred ninety-eight million, six hundred sixty-three thousand, one hundred ninety-two".