198336988 has 6 divisors (see below), whose sum is σ = 347089736. Its totient is φ = 99168492.

The previous prime is 198336947. The next prime is 198336989. The reversal of 198336988 is 889633891.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198336989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24792120 + ... + 24792127.

Almost surely, 2^198336988 is an apocalyptic number.

It is an amenable number.

198336988 is a deficient number, since it is larger than the sum of its proper divisors (148752748).

198336988 is a wasteful number, since it uses less digits than its factorization.

198336988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49584251 (or 49584249 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 55.

The square root of 198336988 is about 14083.2165360048. The cubic root of 198336988 is about 583.1781419724.

The spelling of 198336988 in words is "one hundred ninety-eight million, three hundred thirty-six thousand, nine hundred eighty-eight".