13223726 has 16 divisors (see below), whose sum is σ = 20626704. Its totient is φ = 6352704.

The previous prime is 13223699. The next prime is 13223759. The reversal of 13223726 is 62732231.

It is a junction number, because it is equal to n+sod(n) for n = 13223695 and 13223704.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5066 + ... + 7218.

It is an arithmetic number, because the mean of its divisors is an integer number (1289169).

Almost surely, 2^13223726 is an apocalyptic number.

13223726 is a deficient number, since it is larger than the sum of its proper divisors (7402978).

13223726 is a wasteful number, since it uses less digits than its factorization.

13223726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275.

The product of its digits is 3024, while the sum is 26.

The square root of 13223726 is about 3636.4441422907. Note that the first 3 decimals coincide. The cubic root of 13223726 is about 236.4746623193.

Adding to 13223726 its reverse (62732231), we get a palindrome (75955957).

The spelling of 13223726 in words is "thirteen million, two hundred twenty-three thousand, seven hundred twenty-six".