198716328 has 40 divisors (see below), whose sum is σ = 556591530. Its totient is φ = 66238560.

The previous prime is 198716321. The next prime is 198716339. The reversal of 198716328 is 823617891.

198716328 is a `hidden beast` number, since 1 + 9 + 8 + 7 + 1 + 632 + 8 = 666.

198716328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 173132964 + 25583364 = 13158^2 + 5058^2 .

It is not an unprimeable number, because it can be changed into a prime (198716321) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 152683 + ... + 153978.

Almost surely, 2^198716328 is an apocalyptic number.

198716328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

198716328 is an abundant number, since it is smaller than the sum of its proper divisors (357875202).

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

198716328 is a wasteful number, since it uses less digits than its factorization.

198716328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306679 (or 306666 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 198716328 is about 14096.6779065140. The cubic root of 198716328 is about 583.5497013592.

The spelling of 198716328 in words is "one hundred ninety-eight million, seven hundred sixteen thousand, three hundred twenty-eight".