198258980 has 24 divisors (see below), whose sum is σ = 422210880. Its totient is φ = 78186080.

The previous prime is 198258971. The next prime is 198258997. The reversal of 198258980 is 89852891.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68390 + ... + 71229.

It is an arithmetic number, because the mean of its divisors is an integer number (17592120).

Almost surely, 2^198258980 is an apocalyptic number.

198258980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198258980 is an abundant number, since it is smaller than the sum of its proper divisors (223951900).

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

198258980 is a wasteful number, since it uses less digits than its factorization.

198258980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139699 (or 139697 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 50.

The square root of 198258980 is about 14080.4467258678. The cubic root of 198258980 is about 583.1016752705.

The spelling of 198258980 in words is "one hundred ninety-eight million, two hundred fifty-eight thousand, nine hundred eighty".