200681868 has 12 divisors (see below), whose sum is σ = 468257720. Its totient is φ = 66893952.

The previous prime is 200681863. The next prime is 200681881. The reversal of 200681868 is 868186002.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (200681861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8361733 + ... + 8361756.

Almost surely, 2^200681868 is an apocalyptic number.

It is an amenable number.

200681868 is an abundant number, since it is smaller than the sum of its proper divisors (267575852).

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

200681868 is a wasteful number, since it uses less digits than its factorization.

200681868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16723496 (or 16723494 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 200681868 is about 14166.2227852028. Note that the first 3 decimals coincide. The cubic root of 200681868 is about 585.4673918320.

The spelling of 200681868 in words is "two hundred million, six hundred eighty-one thousand, eight hundred sixty-eight".