13222424 has 16 divisors (see below), whose sum is σ = 25870320. Its totient is φ = 6323680.

The previous prime is 13222411. The next prime is 13222427. The reversal of 13222424 is 42422231.

It is a junction number, because it is equal to n+sod(n) for n = 13222396 and 13222405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35747 + ... + 36114.

It is an arithmetic number, because the mean of its divisors is an integer number (1616895).

Almost surely, 2^13222424 is an apocalyptic number.

It is an amenable number.

13222424 is a deficient number, since it is larger than the sum of its proper divisors (12647896).

13222424 is a wasteful number, since it uses less digits than its factorization.

13222424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71890 (or 71886 counting only the distinct ones).

The product of its digits is 768, while the sum is 20.

The square root of 13222424 is about 3636.2651168472. The cubic root of 13222424 is about 236.4669010142.

Adding to 13222424 its reverse (42422231), we get a palindrome (55644655).

The spelling of 13222424 in words is "thirteen million, two hundred twenty-two thousand, four hundred twenty-four".