13223424 has 40 divisors (see below), whose sum is σ = 35232120. Its totient is φ = 4407296.

The previous prime is 13223423. The next prime is 13223437. The reversal of 13223424 is 42432231.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 13223424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223423) 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, 2769 + ... + 5840.

It is an arithmetic number, because the mean of its divisors is an integer number (880803).

Almost surely, 2^13223424 is an apocalyptic number.

It is an amenable number.

13223424 is an abundant number, since it is smaller than the sum of its proper divisors (22008696).

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

13223424 is an frugal number, since it uses more digits than its factorization.

13223424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8630 (or 8614 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 13223424 is about 3636.4026179729. The cubic root of 13223424 is about 236.4728621234.

Adding to 13223424 its reverse (42432231), we get a palindrome (55655655).

The spelling of 13223424 in words is "thirteen million, two hundred twenty-three thousand, four hundred twenty-four".