198210 has 16 divisors (see below), whose sum is σ = 475776. Its totient is φ = 52848.

The previous prime is 198197. The next prime is 198221. The reversal of 198210 is 12891.

It is an unprimeable number.

198210 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3274 + ... + 3333.

It is an arithmetic number, because the mean of its divisors is an integer number (29736).

2¹⁹⁸²¹⁰ is an apocalyptic number.

198210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198210 is an abundant number, since it is smaller than the sum of its proper divisors (277566).

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

198210 is a wasteful number, since it uses less digits than its factorization.

198210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6617.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 198210 is about 445.2078166430. The cubic root of 198210 is about 58.3053652776.

The spelling of 198210 in words is "one hundred ninety-eight thousand, two hundred ten".