2021944600 has 48 divisors (see below), whose sum is σ = 5062644720. Its totient is φ = 746563200.

The previous prime is 2021944597. The next prime is 2021944601. The reversal of 2021944600 is 64491202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021944601) 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 11 ways as a sum of consecutive naturals, for example, 386236 + ... + 391435.

It is an arithmetic number, because the mean of its divisors is an integer number (105471765).

Almost surely, 2^2021944600 is an apocalyptic number.

2021944600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021944600 is an abundant number, since it is smaller than the sum of its proper divisors (3040700120).

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

2021944600 is a wasteful number, since it uses less digits than its factorization.

2021944600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777700 (or 777691 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2021944600 is about 44966.0382955848. The cubic root of 2021944600 is about 1264.5123753950.

The spelling of 2021944600 in words is "two billion, twenty-one million, nine hundred forty-four thousand, six hundred".