22386222 has 36 divisors (see below), whose sum is σ = 50725584. Its totient is φ = 7134600.

The previous prime is 22386209. The next prime is 22386227. The reversal of 22386222 is 22268322.

It is a happy number.

22386222 is a `hidden beast` number, since 2 + 2 + 38 + 622 + 2 = 666.

It is a super-2 number, since 2×22386222² = 1002285870866568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22386227) 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 17 ways as a sum of consecutive naturals, for example, 8347 + ... + 10697.

It is an arithmetic number, because the mean of its divisors is an integer number (1409044).

Almost surely, 2^22386222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22386222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25362792).

22386222 is an abundant number, since it is smaller than the sum of its proper divisors (28339362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22386222 is a wasteful number, since it uses less digits than its factorization.

22386222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405 (or 2379 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 22386222 is about 4731.4080356697. The cubic root of 22386222 is about 281.8341411894.

The spelling of 22386222 in words is "twenty-two million, three hundred eighty-six thousand, two hundred twenty-two".