13403443 has 4 divisors (see below), whose sum is σ = 13630680. Its totient is φ = 13176208.

The previous prime is 13403437. The next prime is 13403447. The reversal of 13403443 is 34430431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34430431 = 7 ⋅4918633.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13403443 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13403447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113530 + ... + 113647.

It is an arithmetic number, because the mean of its divisors is an integer number (3407670).

Almost surely, 2^13403443 is an apocalyptic number.

13403443 is a deficient number, since it is larger than the sum of its proper divisors (227237).

13403443 is an equidigital number, since it uses as much as digits as its factorization.

13403443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227236.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 13403443 is about 3661.0712913026. The cubic root of 13403443 is about 237.5411149503.

Adding to 13403443 its reverse (34430431), we get a palindrome (47833874).

The spelling of 13403443 in words is "thirteen million, four hundred three thousand, four hundred forty-three".