13408039 has 4 divisors (see below), whose sum is σ = 13415440. Its totient is φ = 13400640.

The previous prime is 13408033. The next prime is 13408051. The reversal of 13408039 is 93080431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 93080431 = 419 ⋅222149.

It is a cyclic number.

It is not a de Polignac number, because 13408039 - 2⁵ = 13408007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13407998 and 13408016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13408033) 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 3 ways as a sum of consecutive naturals, for example, 1054 + ... + 5284.

It is an arithmetic number, because the mean of its divisors is an integer number (3353860).

Almost surely, 2^13408039 is an apocalyptic number.

13408039 is a deficient number, since it is larger than the sum of its proper divisors (7401).

13408039 is an equidigital number, since it uses as much as digits as its factorization.

13408039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7400.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13408039 is about 3661.6989226314. The cubic root of 13408039 is about 237.5682625571.

The spelling of 13408039 in words is "thirteen million, four hundred eight thousand, thirty-nine".