13424243 has 4 divisors (see below), whose sum is σ = 15342000. Its totient is φ = 11506488.

The previous prime is 13424231. The next prime is 13424263. The reversal of 13424243 is 34242431.

13424243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34242431 = 487 ⋅70313.

It is not a de Polignac number, because 13424243 - 2⁸ = 13423987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13424263) 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, 958868 + ... + 958881.

It is an arithmetic number, because the mean of its divisors is an integer number (3835500).

Almost surely, 2^13424243 is an apocalyptic number.

13424243 is a deficient number, since it is larger than the sum of its proper divisors (1917757).

13424243 is an equidigital number, since it uses as much as digits as its factorization.

13424243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917756.

The product of its digits is 2304, while the sum is 23.

The square root of 13424243 is about 3663.9108886544. The cubic root of 13424243 is about 237.6639267180.

Adding to 13424243 its reverse (34242431), we get a palindrome (47666674).

The spelling of 13424243 in words is "thirteen million, four hundred twenty-four thousand, two hundred forty-three".