198078608 has 40 divisors (see below), whose sum is σ = 472344768. Its totient is φ = 78360192.

The previous prime is 198078563. The next prime is 198078619. The reversal of 198078608 is 806870891.

It is an unprimeable number.

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, 66566 + ... + 69477.

Almost surely, 2^198078608 is an apocalyptic number.

It is an amenable number.

198078608 is an abundant number, since it is smaller than the sum of its proper divisors (274266160).

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

198078608 is a wasteful number, since it uses less digits than its factorization.

198078608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136071 (or 136065 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 198078608 is about 14074.0402159437. The cubic root of 198078608 is about 582.9247902572.

The spelling of 198078608 in words is "one hundred ninety-eight million, seventy-eight thousand, six hundred eight".