13401443 has 4 divisors (see below), whose sum is σ = 14619768. Its totient is φ = 12183120.

The previous prime is 13401397. The next prime is 13401467. The reversal of 13401443 is 34410431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13401443 - 2⁶ = 13401379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13401473) 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, 609146 + ... + 609167.

It is an arithmetic number, because the mean of its divisors is an integer number (3654942).

Almost surely, 2^13401443 is an apocalyptic number.

13401443 is a deficient number, since it is larger than the sum of its proper divisors (1218325).

13401443 is a wasteful number, since it uses less digits than its factorization.

13401443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218324.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 13401443 is about 3660.7981370188. The cubic root of 13401443 is about 237.5292994324.

Adding to 13401443 its reverse (34410431), we get a palindrome (47811874).

The spelling of 13401443 in words is "thirteen million, four hundred one thousand, four hundred forty-three".