198023331 has 32 divisors (see below), whose sum is σ = 294174720. Its totient is φ = 117482400.

The previous prime is 198023311. The next prime is 198023351. The reversal of 198023331 is 133320891.

It is an interprime number because it is at equal distance from previous prime (198023311) and next prime (198023351).

It is not a de Polignac number, because 198023331 - 2⁹ = 198022819 is a prime.

It is a super-2 number, since 2×198023331² = 78426479240671122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (198023311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 522300 + ... + 522678.

It is an arithmetic number, because the mean of its divisors is an integer number (9192960).

Almost surely, 2^198023331 is an apocalyptic number.

198023331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

198023331 is a deficient number, since it is larger than the sum of its proper divisors (96151389).

198023331 is a wasteful number, since it uses less digits than its factorization.

198023331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 198023331 is about 14072.0762860354. The cubic root of 198023331 is about 582.8705603872.

The spelling of 198023331 in words is "one hundred ninety-eight million, twenty-three thousand, three hundred thirty-one".