22226389 has 2 divisors, whose sum is σ = 22226390. Its totient is φ = 22226388.

The previous prime is 22226359. The next prime is 22226419. The reversal of 22226389 is 98362222.

It is a balanced prime because it is at equal distance from previous prime (22226359) and next prime (22226419).

It can be written as a sum of positive squares in only one way, i.e., 20857489 + 1368900 = 4567^2 + 1170^2 .

It is a cyclic number.

It is not a de Polignac number, because 22226389 - 2⁵ = 22226357 is a prime.

It is a super-3 number, since 3×22226389³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22226329) 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 as a sum of consecutive naturals, namely, 11113194 + 11113195.

It is an arithmetic number, because the mean of its divisors is an integer number (11113195).

Almost surely, 2^22226389 is an apocalyptic number.

It is an amenable number.

22226389 is a deficient number, since it is larger than the sum of its proper divisors (1).

22226389 is an equidigital number, since it uses as much as digits as its factorization.

22226389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The square root of 22226389 is about 4714.4871407185. The cubic root of 22226389 is about 281.1617926515.

The spelling of 22226389 in words is "twenty-two million, two hundred twenty-six thousand, three hundred eighty-nine".