198298856 has 16 divisors (see below), whose sum is σ = 424926240. Its totient is φ = 84985200.

The previous prime is 198298817. The next prime is 198298871. The reversal of 198298856 is 658892891.

It is a Harshad number since it is a multiple of its sum of digits (56), and also a Moran number because the ratio is a prime number: 3541051 = 198298856 / (1 + 9 + 8 + 2 + 9 + 8 + 8 + 5 + 6).

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, 1770470 + ... + 1770581.

It is an arithmetic number, because the mean of its divisors is an integer number (26557890).

Almost surely, 2^198298856 is an apocalyptic number.

It is an amenable number.

198298856 is an abundant number, since it is smaller than the sum of its proper divisors (226627384).

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

198298856 is a wasteful number, since it uses less digits than its factorization.

198298856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3541064 (or 3541060 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 56.

The square root of 198298856 is about 14081.8626608840. The cubic root of 198298856 is about 583.1407658978.

The spelling of 198298856 in words is "one hundred ninety-eight million, two hundred ninety-eight thousand, eight hundred fifty-six".