2000209986 has 24 divisors (see below), whose sum is σ = 4335184620. Its totient is φ = 666521856.

The previous prime is 2000209979. The next prime is 2000209997. The reversal of 2000209986 is 6899020002.

It can be written as a sum of positive squares in 2 ways, for example, as 1735139025 + 265070961 = 41655^2 + 16281^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2000209986.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45610 + ... + 77978.

Almost surely, 2^2000209986 is an apocalyptic number.

2000209986 is an abundant number, since it is smaller than the sum of its proper divisors (2334974634).

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

2000209986 is a wasteful number, since it uses less digits than its factorization.

2000209986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35810 (or 35807 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 2000209986 is about 44723.7072032272. The cubic root of 2000209986 is about 1259.9651426487.

Adding to 2000209986 its reverse (6899020002), we get a palindrome (8899229988).

The spelling of 2000209986 in words is "two billion, two hundred nine thousand, nine hundred eighty-six".