2022645439 has 4 divisors (see below), whose sum is σ = 2023008520. Its totient is φ = 2022282360.

The previous prime is 2022645433. The next prime is 2022645463. The reversal of 2022645439 is 9345462202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2022645439 - 2⁹ = 2022644927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2022645398 and 2022645407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022645433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173052 + ... + 184369.

It is an arithmetic number, because the mean of its divisors is an integer number (505752130).

Almost surely, 2^2022645439 is an apocalyptic number.

2022645439 is a deficient number, since it is larger than the sum of its proper divisors (363081).

2022645439 is an equidigital number, since it uses as much as digits as its factorization.

2022645439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363080.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 2022645439 is about 44973.8306018066. The cubic root of 2022645439 is about 1264.6584587275.

The spelling of 2022645439 in words is "two billion, twenty-two million, six hundred forty-five thousand, four hundred thirty-nine".