22009768 has 32 divisors (see below), whose sum is σ = 45704160. Its totient is φ = 9852480.

The previous prime is 22009763. The next prime is 22009769. The reversal of 22009768 is 86790022.

It is not an unprimeable number, because it can be changed into a prime (22009763) 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, 4030 + ... + 7762.

It is an arithmetic number, because the mean of its divisors is an integer number (1428255).

Almost surely, 2^22009768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22009768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22852080).

22009768 is an abundant number, since it is smaller than the sum of its proper divisors (23694392).

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

22009768 is a wasteful number, since it uses less digits than its factorization.

22009768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817 (or 3813 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 22009768 is about 4691.4569165665. The cubic root of 22009768 is about 280.2453971116.

The spelling of 22009768 in words is "twenty-two million, nine thousand, seven hundred sixty-eight".