13224434 has 12 divisors (see below), whose sum is σ = 20178522. Its totient is φ = 6500160.

The previous prime is 13224391. The next prime is 13224457. The reversal of 13224434 is 43442231.

It can be written as a sum of positive squares in 3 ways, for example, as 3940225 + 9284209 = 1985^2 + 3047^2 .

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 5 ways as a sum of consecutive naturals, for example, 6554 + ... + 8330.

Almost surely, 2^13224434 is an apocalyptic number.

13224434 is a deficient number, since it is larger than the sum of its proper divisors (6954088).

13224434 is an equidigital number, since it uses as much as digits as its factorization.

13224434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901 (or 1840 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 13224434 is about 3636.5414888325. The cubic root of 13224434 is about 236.4788825386.

Adding to 13224434 its reverse (43442231), we get a palindrome (56666665).

The spelling of 13224434 in words is "thirteen million, two hundred twenty-four thousand, four hundred thirty-four".