198319092 has 12 divisors (see below), whose sum is σ = 462744576. Its totient is φ = 66106360.

The previous prime is 198319063. The next prime is 198319097. The reversal of 198319092 is 290913891.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198319097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8263284 + ... + 8263307.

It is an arithmetic number, because the mean of its divisors is an integer number (38562048).

Almost surely, 2^198319092 is an apocalyptic number.

198319092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198319092 is an abundant number, since it is smaller than the sum of its proper divisors (264425484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198319092 is a wasteful number, since it uses less digits than its factorization.

198319092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16526598 (or 16526596 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 198319092 is about 14082.5811554558. The cubic root of 198319092 is about 583.1606013378.

The spelling of 198319092 in words is "one hundred ninety-eight million, three hundred nineteen thousand, ninety-two".