198222168 has 32 divisors (see below), whose sum is σ = 500108400. Its totient is φ = 65467008.

The previous prime is 198222151. The next prime is 198222179. The reversal of 198222168 is 861222891.

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, 35271 + ... + 40502.

Almost surely, 2^198222168 is an apocalyptic number.

It is an amenable number.

198222168 is an abundant number, since it is smaller than the sum of its proper divisors (301886232).

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

198222168 is a wasteful number, since it uses less digits than its factorization.

198222168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75891 (or 75887 counting only the distinct ones).

The product of its digits is 27648, while the sum is 39.

The square root of 198222168 is about 14079.1394623393. The cubic root of 198222168 is about 583.0655836434.

The spelling of 198222168 in words is "one hundred ninety-eight million, two hundred twenty-two thousand, one hundred sixty-eight".