206018868 has 24 divisors (see below), whose sum is σ = 524412000. Its totient is φ = 62429920.

The previous prime is 206018863. The next prime is 206018893. The reversal of 206018868 is 868810602.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206018861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780243 + ... + 780506.

It is an arithmetic number, because the mean of its divisors is an integer number (21850500).

Almost surely, 2^206018868 is an apocalyptic number.

It is an amenable number.

206018868 is an abundant number, since it is smaller than the sum of its proper divisors (318393132).

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

206018868 is a wasteful number, since it uses less digits than its factorization.

206018868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560767 (or 1560765 counting only the distinct ones).

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

The square root of 206018868 is about 14353.3573772828. The cubic root of 206018868 is about 590.6120890882.

The spelling of 206018868 in words is "two hundred six million, eighteen thousand, eight hundred sixty-eight".