13944293 has 4 divisors (see below), whose sum is σ = 15211968. Its totient is φ = 12676620.

The previous prime is 13944283. The next prime is 13944299. The reversal of 13944293 is 39244931.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39244931 = 11 ⋅3567721.

It is not a de Polignac number, because 13944293 - 2¹⁴ = 13927909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13944299) 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, 633821 + ... + 633842.

It is an arithmetic number, because the mean of its divisors is an integer number (3802992).

Almost surely, 2^13944293 is an apocalyptic number.

It is an amenable number.

13944293 is a deficient number, since it is larger than the sum of its proper divisors (1267675).

13944293 is a wasteful number, since it uses less digits than its factorization.

13944293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267674.

The product of its digits is 23328, while the sum is 35.

The square root of 13944293 is about 3734.2058057906. The cubic root of 13944293 is about 240.6941305392.

The spelling of 13944293 in words is "thirteen million, nine hundred forty-four thousand, two hundred ninety-three".