198683568 has 120 divisors (see below), whose sum is σ = 584962560. Its totient is φ = 62832000.

The previous prime is 198683561. The next prime is 198683587. The reversal of 198683568 is 865386891.

198683568 is a `hidden beast` number, since 19 + 8 + 68 + 3 + 568 = 666.

It is not an unprimeable number, because it can be changed into a prime (198683561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 791443 + ... + 791693.

It is an arithmetic number, because the mean of its divisors is an integer number (4874688).

Almost surely, 2^198683568 is an apocalyptic number.

198683568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198683568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292481280).

198683568 is an abundant number, since it is smaller than the sum of its proper divisors (386278992).

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

198683568 is a wasteful number, since it uses less digits than its factorization.

198683568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 518 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 198683568 is about 14095.5158827196. The cubic root of 198683568 is about 583.5176319615.

It can be divided in two parts, 19868 and 3568, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 198683568 in words is "one hundred ninety-eight million, six hundred eighty-three thousand, five hundred sixty-eight".