13844243 has 4 divisors (see below), whose sum is σ = 15822000. Its totient is φ = 11866488.

The previous prime is 13844227. The next prime is 13844249. The reversal of 13844243 is 34244831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34244831 = 173 ⋅197947.

It is a cyclic number.

It is not a de Polignac number, because 13844243 - 2⁴ = 13844227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13844249) 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, 988868 + ... + 988881.

It is an arithmetic number, because the mean of its divisors is an integer number (3955500).

Almost surely, 2^13844243 is an apocalyptic number.

13844243 is a deficient number, since it is larger than the sum of its proper divisors (1977757).

13844243 is an equidigital number, since it uses as much as digits as its factorization.

13844243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977756.

The product of its digits is 9216, while the sum is 29.

The square root of 13844243 is about 3720.7852665802. The cubic root of 13844243 is about 240.1170898563.

The spelling of 13844243 in words is "thirteen million, eight hundred forty-four thousand, two hundred forty-three".