219198 has 32 divisors (see below), whose sum is σ = 532224. Its totient is φ = 58752.

The previous prime is 219187. The next prime is 219217. The reversal of 219198 is 891912.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

219198 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561 + ... + 867.

It is an arithmetic number, because the mean of its divisors is an integer number (16632).

2²¹⁹¹⁹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 219198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266112).

219198 is an abundant number, since it is smaller than the sum of its proper divisors (313026).

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

219198 is a wasteful number, since it uses less digits than its factorization.

219198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336.

The product of its digits is 1296, while the sum is 30.

The square root of 219198 is about 468.1858605298. The cubic root of 219198 is about 60.2946616507.

The spelling of 219198 in words is "two hundred nineteen thousand, one hundred ninety-eight".