198800826 has 16 divisors (see below), whose sum is σ = 454401984. Its totient is φ = 56800224.

The previous prime is 198800809. The next prime is 198800843. The reversal of 198800826 is 628008891.

It is an interprime number because it is at equal distance from previous prime (198800809) and next prime (198800843).

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 4733353 = 198800826 / (1 + 9 + 8 + 8 + 0 + 0 + 8 + 2 + 6).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2366635 + ... + 2366718.

It is an arithmetic number, because the mean of its divisors is an integer number (28400124).

Almost surely, 2^198800826 is an apocalyptic number.

198800826 is an abundant number, since it is smaller than the sum of its proper divisors (255601158).

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

198800826 is a wasteful number, since it uses less digits than its factorization.

198800826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733365.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 198800826 is about 14099.6746770980. The cubic root of 198800826 is about 583.6324018193.

The spelling of 198800826 in words is "one hundred ninety-eight million, eight hundred thousand, eight hundred twenty-six".