22448712 has 128 divisors (see below), whose sum is σ = 68382720. Its totient is φ = 6048000.

The previous prime is 22448669. The next prime is 22448731. The reversal of 22448712 is 21784422.

It is a self number, because there is not a number n which added to its sum of digits gives 22448712.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106287 + ... + 106497.

It is an arithmetic number, because the mean of its divisors is an integer number (534240).

Almost surely, 2^22448712 is an apocalyptic number.

22448712 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22448712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34191360).

22448712 is an abundant number, since it is smaller than the sum of its proper divisors (45934008).

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

22448712 is a wasteful number, since it uses less digits than its factorization.

22448712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 271 counting only the distinct ones).

The product of its digits is 7168, while the sum is 30.

The square root of 22448712 is about 4738.0071760182. The cubic root of 22448712 is about 282.0961394452.

The spelling of 22448712 in words is "twenty-two million, four hundred forty-eight thousand, seven hundred twelve".