198047648 has 24 divisors (see below), whose sum is σ = 390406212. Its totient is φ = 98896896.

The previous prime is 198047639. The next prime is 198047651. The reversal of 198047648 is 846740891.

It can be written as a sum of positive squares in 2 ways, for example, as 140469904 + 57577744 = 11852^2 + 7588^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24536 + ... + 31592.

Almost surely, 2^198047648 is an apocalyptic number.

It is an amenable number.

198047648 is a deficient number, since it is larger than the sum of its proper divisors (192358564).

198047648 is an equidigital number, since it uses as much as digits as its factorization.

198047648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7944 (or 7936 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 198047648 is about 14072.9402755785. The cubic root of 198047648 is about 582.8944179856.

The spelling of 198047648 in words is "one hundred ninety-eight million, forty-seven thousand, six hundred forty-eight".