198536648 has 32 divisors (see below), whose sum is σ = 392463360. Its totient is φ = 94016640.

The previous prime is 198536641. The next prime is 198536651. The reversal of 198536648 is 846635891.

It is a junction number, because it is equal to n+sod(n) for n = 198536596 and 198536605.

It is not an unprimeable number, because it can be changed into a prime (198536641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3140 + ... + 20172.

It is an arithmetic number, because the mean of its divisors is an integer number (12264480).

Almost surely, 2^198536648 is an apocalyptic number.

It is an amenable number.

198536648 is a deficient number, since it is larger than the sum of its proper divisors (193926712).

198536648 is a wasteful number, since it uses less digits than its factorization.

198536648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17117 (or 17113 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The square root of 198536648 is about 14090.3033324340. The cubic root of 198536648 is about 583.3737657598.

The spelling of 198536648 in words is "one hundred ninety-eight million, five hundred thirty-six thousand, six hundred forty-eight".