2022640326 has 144 divisors (see below), whose sum is σ = 5411493360. Its totient is φ = 542868480.

The previous prime is 2022640289. The next prime is 2022640339. The reversal of 2022640326 is 6230462202.

It is a super-2 number, since 2×2022640326² = 8182147776722772552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2022640326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2295406 + ... + 2296286.

It is an arithmetic number, because the mean of its divisors is an integer number (37579815).

Almost surely, 2^2022640326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2022640326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2705746680).

2022640326 is an abundant number, since it is smaller than the sum of its proper divisors (3388853034).

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

2022640326 is a wasteful number, since it uses less digits than its factorization.

2022640326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 2022640326 is about 44973.7737576023. The cubic root of 2022640326 is about 1264.6573930926.

The spelling of 2022640326 in words is "two billion, twenty-two million, six hundred forty thousand, three hundred twenty-six".