22641722 has 16 divisors (see below), whose sum is σ = 36573120. Its totient is φ = 10473408.

The previous prime is 22641719. The next prime is 22641727. The reversal of 22641722 is 22714622.

It is a junction number, because it is equal to n+sod(n) for n = 22641691 and 22641700.

It is not an unprimeable number, because it can be changed into a prime (22641727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3638 + ... + 7649.

It is an arithmetic number, because the mean of its divisors is an integer number (2285820).

Almost surely, 2^22641722 is an apocalyptic number.

22641722 is a deficient number, since it is larger than the sum of its proper divisors (13931398).

22641722 is a wasteful number, since it uses less digits than its factorization.

22641722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11365.

The product of its digits is 2688, while the sum is 26.

The square root of 22641722 is about 4758.3318505544. The cubic root of 22641722 is about 282.9023040936.

Subtracting 22641722 from its reverse (22714622), we obtain a square (72900 = 270²).

The spelling of 22641722 in words is "twenty-two million, six hundred forty-one thousand, seven hundred twenty-two".