198039108 has 24 divisors (see below), whose sum is σ = 482182848. Its totient is φ = 63142816.

The previous prime is 198039097. The next prime is 198039181. The reversal of 198039108 is 801930891.

It is a happy 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, 358491 + ... + 359042.

It is an arithmetic number, because the mean of its divisors is an integer number (20090952).

Almost surely, 2^198039108 is an apocalyptic number.

It is an amenable number.

198039108 is an abundant number, since it is smaller than the sum of its proper divisors (284143740).

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

198039108 is a wasteful number, since it uses less digits than its factorization.

198039108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717563 (or 717561 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 198039108 is about 14072.6368531274. The cubic root of 198039108 is about 582.8860395475.

Adding to 198039108 its reverse (801930891), we get a palindrome (999969999).

The spelling of 198039108 in words is "one hundred ninety-eight million, thirty-nine thousand, one hundred eight".