22064672 has 48 divisors (see below), whose sum is σ = 50077440. Its totient is φ = 9374208.

The previous prime is 22064671. The next prime is 22064677. The reversal of 22064672 is 27646022.

It is not an unprimeable number, because it can be changed into a prime (22064671) 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, 30329 + ... + 31047.

It is an arithmetic number, because the mean of its divisors is an integer number (1043280).

Almost surely, 2^22064672 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 22064672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25038720).

22064672 is an abundant number, since it is smaller than the sum of its proper divisors (28012768).

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

22064672 is a wasteful number, since it uses less digits than its factorization.

22064672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 22064672 is about 4697.3047591145. The cubic root of 22064672 is about 280.4782303531.

The spelling of 22064672 in words is "twenty-two million, sixty-four thousand, six hundred seventy-two".