22309227 has 6 divisors (see below), whose sum is σ = 32224452. Its totient is φ = 14872812.

The previous prime is 22309213. The next prime is 22309271. The reversal of 22309227 is 72290322.

It is not a de Polignac number, because 22309227 - 2⁶ = 22309163 is a prime.

It is a super-3 number, since 3×22309227³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22309227.

It is not an unprimeable number, because it can be changed into a prime (22309297) 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 5 ways as a sum of consecutive naturals, for example, 1239393 + ... + 1239410.

It is an arithmetic number, because the mean of its divisors is an integer number (5370742).

Almost surely, 2^22309227 is an apocalyptic number.

22309227 is a deficient number, since it is larger than the sum of its proper divisors (9915225).

22309227 is a wasteful number, since it uses less digits than its factorization.

22309227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478809 (or 2478806 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 22309227 is about 4723.2644431579. The cubic root of 22309227 is about 281.5106573159.

Adding to 22309227 its reverse (72290322), we get a palindrome (94599549).

The spelling of 22309227 in words is "twenty-two million, three hundred nine thousand, two hundred twenty-seven".