198445312 has 36 divisors (see below), whose sum is σ = 426593020. Its totient is φ = 91588608.

The previous prime is 198445283. The next prime is 198445337. The reversal of 198445312 is 213544891.

It can be written as a sum of positive squares in 2 ways, for example, as 64256256 + 134189056 = 8016^2 + 11584^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26487 + ... + 33142.

Almost surely, 2^198445312 is an apocalyptic number.

It is an amenable number.

198445312 is an abundant number, since it is smaller than the sum of its proper divisors (228147708).

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

198445312 is an equidigital number, since it uses as much as digits as its factorization.

198445312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59658 (or 59644 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 198445312 is about 14087.0618654140. The cubic root of 198445312 is about 583.2842924396.

The spelling of 198445312 in words is "one hundred ninety-eight million, four hundred forty-five thousand, three hundred twelve".