198428808 has 32 divisors (see below), whose sum is σ = 503480160. Its totient is φ = 65155200.

The previous prime is 198428801. The next prime is 198428809. The reversal of 198428808 is 808824891.

It is not an unprimeable number, because it can be changed into a prime (198428801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60093 + ... + 63308.

It is an arithmetic number, because the mean of its divisors is an integer number (15733755).

Almost surely, 2^198428808 is an apocalyptic number.

It is an amenable number.

198428808 is an abundant number, since it is smaller than the sum of its proper divisors (305051352).

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

198428808 is a wasteful number, since it uses less digits than its factorization.

198428808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123477 (or 123473 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 48.

The square root of 198428808 is about 14086.4760674911. The cubic root of 198428808 is about 583.2681220889.

The spelling of 198428808 in words is "one hundred ninety-eight million, four hundred twenty-eight thousand, eight hundred eight".