198022 has 8 divisors (see below), whose sum is σ = 324072. Its totient is φ = 90000.

The previous prime is 198017. The next prime is 198031. The reversal of 198022 is 220891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 9001 = 198022 / (1 + 9 + 8 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 197984 and 198002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4479 + ... + 4522.

It is an arithmetic number, because the mean of its divisors is an integer number (40509).

2¹⁹⁸⁰²² is an apocalyptic number.

198022 is a deficient number, since it is larger than the sum of its proper divisors (126050).

198022 is a wasteful number, since it uses less digits than its factorization.

198022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9014.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 198022 is about 444.9966292007. The cubic root of 198022 is about 58.2869254476.

It can be divided in two parts, 1980 and 22, that added together give a palindrome (2002).

The spelling of 198022 in words is "one hundred ninety-eight thousand, twenty-two".