22444248 has 64 divisors (see below), whose sum is σ = 58705920. Its totient is φ = 7142400.

The previous prime is 22444243. The next prime is 22444259. The reversal of 22444248 is 84244422.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22444241) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 72013 + ... + 72323.

It is an arithmetic number, because the mean of its divisors is an integer number (917280).

Almost surely, 2^22444248 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 22444248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29352960).

22444248 is an abundant number, since it is smaller than the sum of its proper divisors (36261672).

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

22444248 is a wasteful number, since it uses less digits than its factorization.

22444248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 444 counting only the distinct ones).

The product of its digits is 16384, while the sum is 30.

The square root of 22444248 is about 4737.5360684643. The cubic root of 22444248 is about 282.0774396248.

The spelling of 22444248 in words is "twenty-two million, four hundred forty-four thousand, two hundred forty-eight".