8224440 has 64 divisors (see below), whose sum is σ = 28200960. Its totient is φ = 1879680.

The previous prime is 8224439. The next prime is 8224441. The reversal of 8224440 is 444228.

It is an interprime number because it is at equal distance from previous prime (8224439) and next prime (8224441).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 8224440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8224441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4056 + ... + 5735.

It is an arithmetic number, because the mean of its divisors is an integer number (440640).

Almost surely, 2^8224440 is an apocalyptic number.

It is an amenable number.

8224440 is an abundant number, since it is smaller than the sum of its proper divisors (19976520).

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

8224440 is a wasteful number, since it uses less digits than its factorization.

8224440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9812 (or 9808 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 8224440 is about 2867.8284467520. The cubic root of 8224440 is about 201.8531102159.

Adding to 8224440 its reverse (444228), we get a palindrome (8668668).

The spelling of 8224440 in words is "eight million, two hundred twenty-four thousand, four hundred forty".