22282389 has 6 divisors (see below), whose sum is σ = 32185686. Its totient is φ = 14854920.

The previous prime is 22282369. The next prime is 22282441. The reversal of 22282389 is 98328222.

It can be written as a sum of positive squares in only one way, i.e., 18922500 + 3359889 = 4350^2 + 1833^2 .

It is not a de Polignac number, because 22282389 - 2⁹ = 22281877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22282339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1237902 + ... + 1237919.

It is an arithmetic number, because the mean of its divisors is an integer number (5364281).

Almost surely, 2^22282389 is an apocalyptic number.

It is an amenable number.

22282389 is a deficient number, since it is larger than the sum of its proper divisors (9903297).

22282389 is a wasteful number, since it uses less digits than its factorization.

22282389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475827 (or 2475824 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 22282389 is about 4720.4225446458. The cubic root of 22282389 is about 281.3977262452.

The spelling of 22282389 in words is "twenty-two million, two hundred eighty-two thousand, three hundred eighty-nine".