22282428529 has 9 divisors (see below), whose sum is σ = 22498394529. Its totient is φ = 22068520320.

The previous prime is 22282428523. The next prime is 22282428533. The reversal of 22282428529 is 92582428222.

The square root of 22282428529 is 149273.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 451775025 + 21830653504 = 21255^2 + 147752^2 .

It is not a de Polignac number, because 22282428529 - 2³ = 22282428521 is a prime.

It is a super-2 number, since 2×22282428529² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22282428521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16867189 + ... + 16868509.

Almost surely, 2^22282428529 is an apocalyptic number.

22282428529 is the 149273-rd square number.

22282428529 is the 74637-th centered octagonal number.

It is an amenable number.

22282428529 is a deficient number, since it is larger than the sum of its proper divisors (215966000).

22282428529 is an frugal number, since it uses more digits than its factorization.

22282428529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868 (or 1434 counting only the distinct ones).

The product of its digits is 737280, while the sum is 46.

The spelling of 22282428529 in words is "twenty-two billion, two hundred eighty-two million, four hundred twenty-eight thousand, five hundred twenty-nine".