2000900209 has 16 divisors (see below), whose sum is σ = 2552647680. Its totient is φ = 1522881360.

The previous prime is 2000900197. The next prime is 2000900227. The reversal of 2000900209 is 9020090002.

It is not a de Polignac number, because 2000900209 - 2²³ = 1992511601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2000900209.

It is not an unprimeable number, because it can be changed into a prime (2000900609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298849 + ... + 305470.

It is an arithmetic number, because the mean of its divisors is an integer number (159540480).

Almost surely, 2^2000900209 is an apocalyptic number.

It is an amenable number.

2000900209 is a deficient number, since it is larger than the sum of its proper divisors (551747471).

2000900209 is a wasteful number, since it uses less digits than its factorization.

2000900209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604380.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 2000900209 is about 44731.4230603052. The cubic root of 2000900209 is about 1260.1100535853.

It can be divided in two parts, 2000 and 900209, that added together give a palindrome (902209).

The spelling of 2000900209 in words is "two billion, nine hundred thousand, two hundred nine".