198441612 has 36 divisors (see below), whose sum is σ = 531124776. Its totient is φ = 62256000.

The previous prime is 198441611. The next prime is 198441613. The reversal of 198441612 is 216144891.

It is an interprime number because it is at equal distance from previous prime (198441611) and next prime (198441613).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (198441611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161514 + ... + 162737.

It is an arithmetic number, because the mean of its divisors is an integer number (14753466).

Almost surely, 2^198441612 is an apocalyptic number.

198441612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198441612 is an abundant number, since it is smaller than the sum of its proper divisors (332683164).

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

198441612 is a wasteful number, since it uses less digits than its factorization.

198441612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324278 (or 324273 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 198441612 is about 14086.9305386234. The cubic root of 198441612 is about 583.2806673178.

The spelling of 198441612 in words is "one hundred ninety-eight million, four hundred forty-one thousand, six hundred twelve".