13240339 has 24 divisors (see below), whose sum is σ = 16201680. Its totient is φ = 10777536.

The previous prime is 13240333. The next prime is 13240343. The reversal of 13240339 is 93304231.

It is a happy number.

13240339 is nontrivially palindromic in base 6.

It is not a de Polignac number, because 13240339 - 2¹³ = 13232147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13240333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121417 + ... + 121525.

It is an arithmetic number, because the mean of its divisors is an integer number (675070).

Almost surely, 2^13240339 is an apocalyptic number.

13240339 is a deficient number, since it is larger than the sum of its proper divisors (2961341).

13240339 is a wasteful number, since it uses less digits than its factorization.

13240339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 13240339 is about 3638.7276622468. The cubic root of 13240339 is about 236.5736487815.

The spelling of 13240339 in words is "thirteen million, two hundred forty thousand, three hundred thirty-nine".