198471868 has 24 divisors (see below), whose sum is σ = 400879584. Its totient is φ = 84216000.

The previous prime is 198471863. The next prime is 198471881. The reversal of 198471868 is 868174891.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198471863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32263 + ... + 37918.

It is an arithmetic number, because the mean of its divisors is an integer number (16703316).

Almost surely, 2^198471868 is an apocalyptic number.

It is an amenable number.

198471868 is an abundant number, since it is smaller than the sum of its proper divisors (202407716).

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

198471868 is a wasteful number, since it uses less digits than its factorization.

198471868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70293 (or 70291 counting only the distinct ones).

The product of its digits is 774144, while the sum is 52.

The square root of 198471868 is about 14088.0044009079. The cubic root of 198471868 is about 583.3103096945.

The spelling of 198471868 in words is "one hundred ninety-eight million, four hundred seventy-one thousand, eight hundred sixty-eight".