13444424 has 24 divisors (see below), whose sum is σ = 29324790. Its totient is φ = 5761728.

The previous prime is 13444373. The next prime is 13444469. The reversal of 13444424 is 42444431.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8236900 + 5207524 = 2870^2 + 2282^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13444393 and 13444402.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16757 + ... + 17540.

Almost surely, 2^13444424 is an apocalyptic number.

13444424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13444424 is an abundant number, since it is smaller than the sum of its proper divisors (15880366).

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

13444424 is a wasteful number, since it uses less digits than its factorization.

13444424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34317 (or 34306 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 13444424 is about 3666.6638787868. The cubic root of 13444424 is about 237.7829624617.

Adding to 13444424 its reverse (42444431), we get a palindrome (55888855).

The spelling of 13444424 in words is "thirteen million, four hundred forty-four thousand, four hundred twenty-four".