198200856 has 128 divisors (see below), whose sum is σ = 615628800. Its totient is φ = 51891840.

The previous prime is 198200851. The next prime is 198200857. The reversal of 198200856 is 658002891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198200851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97951 + ... + 99953.

It is an arithmetic number, because the mean of its divisors is an integer number (4809600).

Almost surely, 2^198200856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198200856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307814400).

198200856 is an abundant number, since it is smaller than the sum of its proper divisors (417427944).

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

198200856 is a wasteful number, since it uses less digits than its factorization.

198200856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 198200856 is about 14078.3825775549. The cubic root of 198200856 is about 583.0446866549.

The spelling of 198200856 in words is "one hundred ninety-eight million, two hundred thousand, eight hundred fifty-six".