198270 has 24 divisors (see below), whose sum is σ = 515736. Its totient is φ = 52848.

The previous prime is 198259. The next prime is 198277. The reversal of 198270 is 72891.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1012 + ... + 1191.

It is an arithmetic number, because the mean of its divisors is an integer number (21489).

2¹⁹⁸²⁷⁰ is an apocalyptic number.

198270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198270 is an abundant number, since it is smaller than the sum of its proper divisors (317466).

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

198270 is a wasteful number, since it uses less digits than its factorization.

198270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216 (or 2213 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 198270 is about 445.2751958059. The cubic root of 198270 is about 58.3112478752.

The spelling of 198270 in words is "one hundred ninety-eight thousand, two hundred seventy".