2644022045 has 32 divisors (see below), whose sum is σ = 3821230080. Its totient is φ = 1715688000.

The previous prime is 2644022039. The next prime is 2644022071. The reversal of 2644022045 is 5402204462.

2644022045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2644022045 - 2²⁰ = 2642973469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2644021999 and 2644022017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 811670 + ... + 814920.

It is an arithmetic number, because the mean of its divisors is an integer number (119413440).

Almost surely, 2^2644022045 is an apocalyptic number.

It is an amenable number.

2644022045 is a deficient number, since it is larger than the sum of its proper divisors (1177208035).

2644022045 is a wasteful number, since it uses less digits than its factorization.

2644022045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4505.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 2644022045 is about 51420.0548910637. The cubic root of 2644022045 is about 1382.7861593957.

The spelling of 2644022045 in words is "two billion, six hundred forty-four million, twenty-two thousand, forty-five".