2002020900 has 72 divisors (see below), whose sum is σ = 6319116384. Its totient is φ = 485337600.

The previous prime is 2002020871. The next prime is 2002020941. The reversal of 2002020900 is 90202002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2002020900.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300037 + ... + 306636.

Almost surely, 2^2002020900 is an apocalyptic number.

2002020900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002020900 is an abundant number, since it is smaller than the sum of its proper divisors (4317095484).

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

2002020900 is a wasteful number, since it uses less digits than its factorization.

2002020900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606701 (or 606694 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2002020900 is about 44743.9481941413. The cubic root of 2002020900 is about 1260.3452694510.

Adding to 2002020900 its reverse (90202002), we get a palindrome (2092222902).

The spelling of 2002020900 in words is "two billion, two million, twenty thousand, nine hundred".