198206980 has 24 divisors (see below), whose sum is σ = 416670912. Its totient is φ = 79199712.

The previous prime is 198206977. The next prime is 198206989. The reversal of 198206980 is 89602891.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (198206989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16599 + ... + 25921.

It is an arithmetic number, because the mean of its divisors is an integer number (17361288).

Almost surely, 2^198206980 is an apocalyptic number.

198206980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198206980 is an abundant number, since it is smaller than the sum of its proper divisors (218463932).

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

198206980 is a wasteful number, since it uses less digits than its factorization.

198206980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10395 (or 10393 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 198206980 is about 14078.6000724504. The cubic root of 198206980 is about 583.0506915548.

The spelling of 198206980 in words is "one hundred ninety-eight million, two hundred six thousand, nine hundred eighty".