198252312 has 16 divisors (see below), whose sum is σ = 495630840. Its totient is φ = 66084096.

The previous prime is 198252287. The next prime is 198252319. The reversal of 198252312 is 213252891.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198252319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4130233 + ... + 4130280.

Almost surely, 2^198252312 is an apocalyptic number.

198252312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198252312 is an abundant number, since it is smaller than the sum of its proper divisors (297378528).

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

198252312 is a wasteful number, since it uses less digits than its factorization.

198252312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8260522 (or 8260518 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 198252312 is about 14080.2099416166. The cubic root of 198252312 is about 583.0951380877.

The spelling of 198252312 in words is "one hundred ninety-eight million, two hundred fifty-two thousand, three hundred twelve".