2043644022 has 48 divisors (see below), whose sum is σ = 5069256192. Its totient is φ = 582882480.

The previous prime is 2043644017. The next prime is 2043644023. The reversal of 2043644022 is 2204463402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043644023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60147 + ... + 87777.

It is an arithmetic number, because the mean of its divisors is an integer number (105609504).

Almost surely, 2^2043644022 is an apocalyptic number.

2043644022 is an abundant number, since it is smaller than the sum of its proper divisors (3025612170).

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

2043644022 is a wasteful number, since it uses less digits than its factorization.

2043644022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28233 (or 28230 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 2043644022 is about 45206.6811655092. The cubic root of 2043644022 is about 1269.0198530018.

The spelling of 2043644022 in words is "two billion, forty-three million, six hundred forty-four thousand, twenty-two".