22644422 has 4 divisors (see below), whose sum is σ = 33966636. Its totient is φ = 11322210.

The previous prime is 22644421. The next prime is 22644437. The reversal of 22644422 is 22444622.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 22644391 and 22644400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22644421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5661104 + ... + 5661107.

It is an arithmetic number, because the mean of its divisors is an integer number (8491659).

Almost surely, 2^22644422 is an apocalyptic number.

22644422 is a deficient number, since it is larger than the sum of its proper divisors (11322214).

22644422 is a wasteful number, since it uses less digits than its factorization.

22644422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11322213.

The product of its digits is 6144, while the sum is 26.

The square root of 22644422 is about 4758.6155549697. The cubic root of 22644422 is about 282.9135489077.

The spelling of 22644422 in words is "twenty-two million, six hundred forty-four thousand, four hundred twenty-two".