13240929 has 32 divisors (see below), whose sum is σ = 20321280. Its totient is φ = 7601472.

The previous prime is 13240921. The next prime is 13240933. The reversal of 13240929 is 92904231.

It is not a de Polignac number, because 13240929 - 2³ = 13240921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13240896 and 13240905.

It is not an unprimeable number, because it can be changed into a prime (13240921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79204 + ... + 79370.

It is an arithmetic number, because the mean of its divisors is an integer number (635040).

Almost surely, 2^13240929 is an apocalyptic number.

13240929 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13240929 is a deficient number, since it is larger than the sum of its proper divisors (7080351).

13240929 is a wasteful number, since it uses less digits than its factorization.

13240929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 13240929 is about 3638.8087336380. The cubic root of 13240929 is about 236.5771626990.

The spelling of 13240929 in words is "thirteen million, two hundred forty thousand, nine hundred twenty-nine".