198815256 has 32 divisors (see below), whose sum is σ = 552265200. Its totient is φ = 66271680.

The previous prime is 198815219. The next prime is 198815261. The reversal of 198815256 is 652518891.

It is a happy number.

198815256 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460005 + ... + 460436.

Almost surely, 2^198815256 is an apocalyptic number.

It is an amenable number.

198815256 is an abundant number, since it is smaller than the sum of its proper divisors (353449944).

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

198815256 is a wasteful number, since it uses less digits than its factorization.

198815256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920456 (or 920446 counting only the distinct ones).

The product of its digits is 172800, while the sum is 45.

The square root of 198815256 is about 14100.1863817469. The cubic root of 198815256 is about 583.6465225048.

The spelling of 198815256 in words is "one hundred ninety-eight million, eight hundred fifteen thousand, two hundred fifty-six".