13420039 has 4 divisors (see below), whose sum is σ = 13431520. Its totient is φ = 13408560.

The previous prime is 13420037. The next prime is 13420049. The reversal of 13420039 is 93002431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93002431 = 379 ⋅245389.

It is a cyclic number.

It is not a de Polignac number, because 13420039 - 2¹ = 13420037 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3759 + ... + 6400.

It is an arithmetic number, because the mean of its divisors is an integer number (3357880).

Almost surely, 2^13420039 is an apocalyptic number.

13420039 is a deficient number, since it is larger than the sum of its proper divisors (11481).

13420039 is a wasteful number, since it uses less digits than its factorization.

13420039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11480.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 13420039 is about 3663.3371398221. The cubic root of 13420039 is about 237.6391148046.

The spelling of 13420039 in words is "thirteen million, four hundred twenty thousand, thirty-nine".