13443443 has 16 divisors (see below), whose sum is σ = 15136800. Its totient is φ = 11924640.

The previous prime is 13443407. The next prime is 13443467. The reversal of 13443443 is 34434431.

13443443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13443443 - 2⁸ = 13443187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13443343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63608 + ... + 63818.

It is an arithmetic number, because the mean of its divisors is an integer number (946050).

Almost surely, 2^13443443 is an apocalyptic number.

13443443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13443443 is a deficient number, since it is larger than the sum of its proper divisors (1693357).

13443443 is an equidigital number, since it uses as much as digits as its factorization.

13443443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 253 counting only the distinct ones).

The product of its digits is 6912, while the sum is 26.

The square root of 13443443 is about 3666.5301035175. The cubic root of 13443443 is about 237.7771788804. Note that the first 3 decimals are identical.

Adding to 13443443 its reverse (34434431), we get a palindrome (47877874).

The spelling of 13443443 in words is "thirteen million, four hundred forty-three thousand, four hundred forty-three".