22008672 has 120 divisors (see below), whose sum is σ = 74034576. Its totient is φ = 6283008.

The previous prime is 22008661. The next prime is 22008691. The reversal of 22008672 is 27680022.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 17538 + ... + 18750.

Almost surely, 2^22008672 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 22008672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37017288).

22008672 is an abundant number, since it is smaller than the sum of its proper divisors (52025904).

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

22008672 is a wasteful number, since it uses less digits than its factorization.

22008672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 22008672 is about 4691.3401070483. The cubic root of 22008672 is about 280.2407453277.

Adding to 22008672 its reverse (27680022), we get a palindrome (49688694).

The spelling of 22008672 in words is "twenty-two million, eight thousand, six hundred seventy-two".