13420443 has 8 divisors (see below), whose sum is σ = 17927248. Its totient is φ = 8930304.

The previous prime is 13420397. The next prime is 13420453. The reversal of 13420443 is 34402431.

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

It is not a de Polignac number, because 13420443 - 2¹³ = 13412251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13420453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2146 + ... + 5607.

It is an arithmetic number, because the mean of its divisors is an integer number (2240906).

Almost surely, 2^13420443 is an apocalyptic number.

13420443 is a deficient number, since it is larger than the sum of its proper divisors (4506805).

13420443 is an equidigital number, since it uses as much as digits as its factorization.

13420443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8333.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 13420443 is about 3663.3922803871. The cubic root of 13420443 is about 237.6414994286.

Adding to 13420443 its reverse (34402431), we get a palindrome (47822874).

The spelling of 13420443 in words is "thirteen million, four hundred twenty thousand, four hundred forty-three".