198840272 has 20 divisors (see below), whose sum is σ = 385766976. Its totient is φ = 99287520.

The previous prime is 198840251. The next prime is 198840289. The reversal of 198840272 is 272048891.

It is a congruent number.

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, 4697 + ... + 20487.

Almost surely, 2^198840272 is an apocalyptic number.

It is an amenable number.

198840272 is a deficient number, since it is larger than the sum of its proper divisors (186926704).

198840272 is a wasteful number, since it uses less digits than its factorization.

198840272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16586 (or 16580 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 198840272 is about 14101.0734343170. The cubic root of 198840272 is about 583.6710006550.

The spelling of 198840272 in words is "one hundred ninety-eight million, eight hundred forty thousand, two hundred seventy-two".