198922560 has 112 divisors (see below), whose sum is σ = 634447296. Its totient is φ = 52805632.

The previous prime is 198922547. The next prime is 198922573. The reversal of 198922560 is 65229891.

It is an interprime number because it is at equal distance from previous prime (198922547) and next prime (198922573).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 338587 + ... + 339173.

It is an arithmetic number, because the mean of its divisors is an integer number (5664708).

Almost surely, 2^198922560 is an apocalyptic number.

198922560 is a gapful number since it is divisible by the number (10) 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 198922560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317223648).

198922560 is an abundant number, since it is smaller than the sum of its proper divisors (435524736).

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

198922560 is a wasteful number, since it uses less digits than its factorization.

198922560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 198922560 is about 14103.9909245575. The cubic root of 198922560 is about 583.7515049627.

The spelling of 198922560 in words is "one hundred ninety-eight million, nine hundred twenty-two thousand, five hundred sixty".