22764469 has 18 divisors (see below), whose sum is σ = 28685250. Its totient is φ = 18004896.

The previous prime is 22764463. The next prime is 22764473. The reversal of 22764469 is 96446722.

It can be written as a sum of positive squares in 3 ways, for example, as 1030225 + 21734244 = 1015^2 + 4662^2 .

It is not a de Polignac number, because 22764469 - 2³ = 22764461 is a prime.

It is a super-2 number, since 2×22764469² = 1036442097703922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22764461) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6907 + ... + 9655.

It is an arithmetic number, because the mean of its divisors is an integer number (1593625).

Almost surely, 2^22764469 is an apocalyptic number.

It is an amenable number.

22764469 is a deficient number, since it is larger than the sum of its proper divisors (5920781).

22764469 is a wasteful number, since it uses less digits than its factorization.

22764469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789 (or 2769 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 22764469 is about 4771.2125293263. The cubic root of 22764469 is about 283.4126134161.

The spelling of 22764469 in words is "twenty-two million, seven hundred sixty-four thousand, four hundred sixty-nine".