198338 has 16 divisors (see below), whose sum is σ = 351744. Its totient is φ = 82080.

The previous prime is 198337. The next prime is 198347. The reversal of 198338 is 833891.

It is not an unprimeable number, because it can be changed into a prime (198337) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 206 + ... + 662.

It is an arithmetic number, because the mean of its divisors is an integer number (21984).

2¹⁹⁸³³⁸ is an apocalyptic number.

198338 is a deficient number, since it is larger than the sum of its proper divisors (153406).

198338 is a wasteful number, since it uses less digits than its factorization.

198338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497.

The product of its digits is 5184, while the sum is 32.

The square root of 198338 is about 445.3515465337. The cubic root of 198338 is about 58.3179133845.

The spelling of 198338 in words is "one hundred ninety-eight thousand, three hundred thirty-eight".