198851872 has 24 divisors (see below), whose sum is σ = 412095600. Its totient is φ = 94192704.

The previous prime is 198851867. The next prime is 198851897. The reversal of 198851872 is 278158891.

198851872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 162922 + ... + 164137.

It is an arithmetic number, because the mean of its divisors is an integer number (17170650).

Almost surely, 2^198851872 is an apocalyptic number.

It is an amenable number.

198851872 is an abundant number, since it is smaller than the sum of its proper divisors (213243728).

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

198851872 is a wasteful number, since it uses less digits than its factorization.

198851872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327088 (or 327080 counting only the distinct ones).

The product of its digits is 322560, while the sum is 49.

The square root of 198851872 is about 14101.4847445225. The cubic root of 198851872 is about 583.6823505555.

The spelling of 198851872 in words is "one hundred ninety-eight million, eight hundred fifty-one thousand, eight hundred seventy-two".