198344872 has 16 divisors (see below), whose sum is σ = 405705600. Its totient is φ = 90156720.

The previous prime is 198344849. The next prime is 198344879. The reversal of 198344872 is 278443891.

It is not an unprimeable number, because it can be changed into a prime (198344879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1126872 + ... + 1127047.

It is an arithmetic number, because the mean of its divisors is an integer number (25356600).

Almost surely, 2^198344872 is an apocalyptic number.

It is an amenable number.

198344872 is an abundant number, since it is smaller than the sum of its proper divisors (207360728).

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

198344872 is a wasteful number, since it uses less digits than its factorization.

198344872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253936 (or 2253932 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 198344872 is about 14083.4964408701. The cubic root of 198344872 is about 583.1858690831.

The spelling of 198344872 in words is "one hundred ninety-eight million, three hundred forty-four thousand, eight hundred seventy-two".