22044672 has 168 divisors, whose sum is σ = 71560944. Its totient is φ = 6488064.

The previous prime is 22044599. The next prime is 22044679. The reversal of 22044672 is 27644022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22044679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 958453 + ... + 958475.

It is an arithmetic number, because the mean of its divisors is an integer number (425958).

Almost surely, 2^22044672 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 22044672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35780472).

22044672 is an abundant number, since it is smaller than the sum of its proper divisors (49516272).

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

22044672 is a wasteful number, since it uses less digits than its factorization.

22044672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 22044672 is about 4695.1753960848. The cubic root of 22044672 is about 280.3934604496.

Adding to 22044672 its reverse (27644022), we get a palindrome (49688694).

The spelling of 22044672 in words is "twenty-two million, forty-four thousand, six hundred seventy-two".