198280 has 16 divisors (see below), whose sum is σ = 446220. Its totient is φ = 79296.

The previous prime is 198277. The next prime is 198281. The reversal of 198280 is 82891.

198280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 195364 + 2916 = 442^2 + 54^2 .

It is not an unprimeable number, because it can be changed into a prime (198281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2439 + ... + 2518.

2¹⁹⁸²⁸⁰ is an apocalyptic number.

198280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198280 is an abundant number, since it is smaller than the sum of its proper divisors (247940).

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

198280 is a wasteful number, since it uses less digits than its factorization.

198280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4968 (or 4964 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 198280 is about 445.2864246752. The cubic root of 198280 is about 58.3122281927.

The spelling of 198280 in words is "one hundred ninety-eight thousand, two hundred eighty".