13224456 has 96 divisors (see below), whose sum is σ = 43118400. Its totient is φ = 3576960.

The previous prime is 13224391. The next prime is 13224457. The reversal of 13224456 is 65442231.

It is not an unprimeable number, because it can be changed into a prime (13224457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8886 + ... + 10266.

It is an arithmetic number, because the mean of its divisors is an integer number (449150).

Almost surely, 2^13224456 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 13224456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21559200).

13224456 is an abundant number, since it is smaller than the sum of its proper divisors (29893944).

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

13224456 is a wasteful number, since it uses less digits than its factorization.

13224456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419 (or 1412 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 13224456 is about 3636.5445136833. The cubic root of 13224456 is about 236.4790136730.

Adding to 13224456 its reverse (65442231), we get a palindrome (78666687).

It can be divided in two parts, 1322 and 4456, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 13224456 in words is "thirteen million, two hundred twenty-four thousand, four hundred fifty-six".