13224726 has 12 divisors (see below), whose sum is σ = 28653612. Its totient is φ = 4408236.

The previous prime is 13224713. The next prime is 13224727. The reversal of 13224726 is 62742231.

13224726 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13224726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13224727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 367336 + ... + 367371.

It is an arithmetic number, because the mean of its divisors is an integer number (2387801).

Almost surely, 2^13224726 is an apocalyptic number.

13224726 is an abundant number, since it is smaller than the sum of its proper divisors (15428886).

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

13224726 is a wasteful number, since it uses less digits than its factorization.

13224726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734715 (or 734712 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 13224726 is about 3636.5816366473. The cubic root of 13224726 is about 236.4806230372.

Adding to 13224726 its reverse (62742231), we get a palindrome (75966957).

The spelling of 13224726 in words is "thirteen million, two hundred twenty-four thousand, seven hundred twenty-six".