13443224 has 16 divisors (see below), whose sum is σ = 26302320. Its totient is φ = 6429280.

The previous prime is 13443217. The next prime is 13443239. The reversal of 13443224 is 42234431.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 13443224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36347 + ... + 36714.

It is an arithmetic number, because the mean of its divisors is an integer number (1643895).

Almost surely, 2^13443224 is an apocalyptic number.

It is an amenable number.

13443224 is a deficient number, since it is larger than the sum of its proper divisors (12859096).

13443224 is a wasteful number, since it uses less digits than its factorization.

13443224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73090 (or 73086 counting only the distinct ones).

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

The square root of 13443224 is about 3666.5002386472. The cubic root of 13443224 is about 237.7758877060.

Adding to 13443224 its reverse (42234431), we get a palindrome (55677655).

The spelling of 13443224 in words is "thirteen million, four hundred forty-three thousand, two hundred twenty-four".