22066844 has 12 divisors (see below), whose sum is σ = 40296144. Its totient is φ = 10553664.

The previous prime is 22066801. The next prime is 22066859. The reversal of 22066844 is 44866022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22066844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119837 + ... + 120020.

It is an arithmetic number, because the mean of its divisors is an integer number (3358012).

Almost surely, 2^22066844 is an apocalyptic number.

It is an amenable number.

22066844 is a deficient number, since it is larger than the sum of its proper divisors (18229300).

22066844 is a wasteful number, since it uses less digits than its factorization.

22066844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239884 (or 239882 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 22066844 is about 4697.5359498358. The cubic root of 22066844 is about 280.4874332805.

The spelling of 22066844 in words is "twenty-two million, sixty-six thousand, eight hundred forty-four".