13844013 has 4 divisors (see below), whose sum is σ = 18458688. Its totient is φ = 9229340.

The previous prime is 13844003. The next prime is 13844021. The reversal of 13844013 is 31044831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13844013 - 2⁴ = 13843997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13844003) 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, 2307333 + ... + 2307338.

It is an arithmetic number, because the mean of its divisors is an integer number (4614672).

Almost surely, 2^13844013 is an apocalyptic number.

It is an amenable number.

13844013 is a deficient number, since it is larger than the sum of its proper divisors (4614675).

13844013 is an equidigital number, since it uses as much as digits as its factorization.

13844013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4614674.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 13844013 is about 3720.7543589976. The cubic root of 13844013 is about 240.1157601282.

Adding to 13844013 its reverse (31044831), we get a palindrome (44888844).

The spelling of 13844013 in words is "thirteen million, eight hundred forty-four thousand, thirteen".