22666626 has 24 divisors (see below), whose sum is σ = 49225644. Its totient is φ = 7537920.

The previous prime is 22666621. The next prime is 22666663. The reversal of 22666626 is 62666622.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21762225 + 904401 = 4665^2 + 951^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22666621) 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 11 ways as a sum of consecutive naturals, for example, 8170 + ... + 10586.

Almost surely, 2^22666626 is an apocalyptic number.

22666626 is an abundant number, since it is smaller than the sum of its proper divisors (26559018).

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

22666626 is a wasteful number, since it uses less digits than its factorization.

22666626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946 (or 2943 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 22666626 is about 4760.9480148391. The cubic root of 22666626 is about 283.0059890436.

The spelling of 22666626 in words is "twenty-two million, six hundred sixty-six thousand, six hundred twenty-six".