198559888 has 20 divisors (see below), whose sum is σ = 384975360. Its totient is φ = 99211424.

The previous prime is 198559883. The next prime is 198559891. The reversal of 198559888 is 888955891.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (198559883) 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, 26193 + ... + 32911.

It is an arithmetic number, because the mean of its divisors is an integer number (19248768).

Almost surely, 2^198559888 is an apocalyptic number.

It is an amenable number.

198559888 is a deficient number, since it is larger than the sum of its proper divisors (186415472).

198559888 is a wasteful number, since it uses less digits than its factorization.

198559888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8574 (or 8568 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 61.

The square root of 198559888 is about 14091.1279889156. The cubic root of 198559888 is about 583.3965274304.

The spelling of 198559888 in words is "one hundred ninety-eight million, five hundred fifty-nine thousand, eight hundred eighty-eight".