13443423 has 8 divisors (see below), whose sum is σ = 20485248. Its totient is φ = 7681944.

The previous prime is 13443407. The next prime is 13443467. The reversal of 13443423 is 32434431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13443423 - 2⁴ = 13443407 is a prime.

It is a super-4 number, since 4×13443423⁴ (a number of 30 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13443393 and 13443402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13443623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320061 + ... + 320102.

It is an arithmetic number, because the mean of its divisors is an integer number (2560656).

Almost surely, 2^13443423 is an apocalyptic number.

13443423 is a deficient number, since it is larger than the sum of its proper divisors (7041825).

13443423 is an equidigital number, since it uses as much as digits as its factorization.

13443423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640173.

The product of its digits is 3456, while the sum is 24.

The square root of 13443423 is about 3666.5273761422. The cubic root of 13443423 is about 237.7770609655. Note that the first 3 decimals are identical.

Adding to 13443423 its reverse (32434431), we get a palindrome (45877854).

The spelling of 13443423 in words is "thirteen million, four hundred forty-three thousand, four hundred twenty-three".