198994328 has 16 divisors (see below), whose sum is σ = 401815680. Its totient is φ = 91843488.

The previous prime is 198994319. The next prime is 198994343. The reversal of 198994328 is 823499891.

It is a self number, because there is not a number n which added to its sum of digits gives 198994328.

It is a congruent 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, 956600 + ... + 956807.

It is an arithmetic number, because the mean of its divisors is an integer number (25113480).

Almost surely, 2^198994328 is an apocalyptic number.

It is an amenable number.

198994328 is an abundant number, since it is smaller than the sum of its proper divisors (202821352).

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

198994328 is a wasteful number, since it uses less digits than its factorization.

198994328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913426 (or 1913422 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 53.

The square root of 198994328 is about 14106.5349395236. The cubic root of 198994328 is about 583.8216991809.

The spelling of 198994328 in words is "one hundred ninety-eight million, nine hundred ninety-four thousand, three hundred twenty-eight".