22144626 has 48 divisors (see below), whose sum is σ = 55194048. Its totient is φ = 6285600.

The previous prime is 22144621. The next prime is 22144631. The reversal of 22144626 is 62644122.

22144626 is a `hidden beast` number, since 22 + 14 + 4 + 626 = 666.

It is an interprime number because it is at equal distance from previous prime (22144621) and next prime (22144631).

It is a self number, because there is not a number n which added to its sum of digits gives 22144626.

It is not an unprimeable number, because it can be changed into a prime (22144621) 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 23 ways as a sum of consecutive naturals, for example, 22321 + ... + 23291.

It is an arithmetic number, because the mean of its divisors is an integer number (1149876).

Almost surely, 2^22144626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22144626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27597024).

22144626 is an abundant number, since it is smaller than the sum of its proper divisors (33049422).

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

22144626 is a wasteful number, since it uses less digits than its factorization.

22144626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167 (or 1164 counting only the distinct ones).

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

The square root of 22144626 is about 4705.8076883783. The cubic root of 22144626 is about 280.8166041999.

Adding to 22144626 its reverse (62644122), we get a palindrome (84788748).

The spelling of 22144626 in words is "twenty-two million, one hundred forty-four thousand, six hundred twenty-six".