198840933 has 8 divisors (see below), whose sum is σ = 294579200. Its totient is φ = 132560604.

The previous prime is 198840919. The next prime is 198840953. The reversal of 198840933 is 339048891.

198840933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 198840933 - 2⁶ = 198840869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198840953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3682213 + ... + 3682266.

It is an arithmetic number, because the mean of its divisors is an integer number (36822400).

Almost surely, 2^198840933 is an apocalyptic number.

It is an amenable number.

198840933 is a deficient number, since it is larger than the sum of its proper divisors (95738267).

198840933 is an equidigital number, since it uses as much as digits as its factorization.

198840933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7364488 (or 7364482 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 198840933 is about 14101.0968722295. The cubic root of 198840933 is about 583.6716474155.

The spelling of 198840933 in words is "one hundred ninety-eight million, eight hundred forty thousand, nine hundred thirty-three".