13940339 has 4 divisors (see below), whose sum is σ = 15931824. Its totient is φ = 11948856.

The previous prime is 13940321. The next prime is 13940347. The reversal of 13940339 is 93304931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93304931 = 199 ⋅468869.

It is a cyclic number.

It is not a de Polignac number, because 13940339 - 2¹⁶ = 13874803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13940389) 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, 995732 + ... + 995745.

It is an arithmetic number, because the mean of its divisors is an integer number (3982956).

Almost surely, 2^13940339 is an apocalyptic number.

13940339 is a deficient number, since it is larger than the sum of its proper divisors (1991485).

13940339 is an equidigital number, since it uses as much as digits as its factorization.

13940339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991484.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 13940339 is about 3733.6763384096. The cubic root of 13940339 is about 240.6713782309.

The spelling of 13940339 in words is "thirteen million, nine hundred forty thousand, three hundred thirty-nine".