2021872200 has 48 divisors (see below), whose sum is σ = 6267805680. Its totient is φ = 539165760.

The previous prime is 2021872157. The next prime is 2021872207. The reversal of 2021872200 is 22781202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2021872207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1684294 + ... + 1685493.

It is an arithmetic number, because the mean of its divisors is an integer number (130579285).

Almost surely, 2^2021872200 is an apocalyptic number.

2021872200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021872200 is an abundant number, since it is smaller than the sum of its proper divisors (4245933480).

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

2021872200 is a wasteful number, since it uses less digits than its factorization.

2021872200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369806 (or 3369797 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 2021872200 is about 44965.2332363572. The cubic root of 2021872200 is about 1264.4972823688.

The spelling of 2021872200 in words is "two billion, twenty-one million, eight hundred seventy-two thousand, two hundred".