198344331 has 6 divisors (see below), whose sum is σ = 286497380. Its totient is φ = 132229548.

The previous prime is 198344323. The next prime is 198344359. The reversal of 198344331 is 133443891.

198344331 is a `hidden beast` number, since 198 + 34 + 433 + 1 = 666.

It is not a de Polignac number, because 198344331 - 2³ = 198344323 is a prime.

It is a super-2 number, since 2×198344331² = 78680947279675122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198244331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11019121 + ... + 11019138.

Almost surely, 2^198344331 is an apocalyptic number.

198344331 is a deficient number, since it is larger than the sum of its proper divisors (88153049).

198344331 is a wasteful number, since it uses less digits than its factorization.

198344331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22038265 (or 22038262 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 198344331 is about 14083.4772339788. The cubic root of 198344331 is about 583.1853388554.

The spelling of 198344331 in words is "one hundred ninety-eight million, three hundred forty-four thousand, three hundred thirty-one".