198647488 has 28 divisors (see below), whose sum is σ = 424515280. Its totient is φ = 91683072.

The previous prime is 198647459. The next prime is 198647509. The reversal of 198647488 is 884746891.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118548 + ... + 120211.

It is an arithmetic number, because the mean of its divisors is an integer number (15161260).

Almost surely, 2^198647488 is an apocalyptic number.

It is an amenable number.

198647488 is an abundant number, since it is smaller than the sum of its proper divisors (225867792).

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

198647488 is a wasteful number, since it uses less digits than its factorization.

198647488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238784 (or 238774 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 55.

The square root of 198647488 is about 14094.2359849692. The cubic root of 198647488 is about 583.4823084721.

The spelling of 198647488 in words is "one hundred ninety-eight million, six hundred forty-seven thousand, four hundred eighty-eight".