12409329 has 8 divisors (see below), whose sum is σ = 16562592. Its totient is φ = 8264480.

The previous prime is 12409289. The next prime is 12409333. The reversal of 12409329 is 92390421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12409329 - 2¹⁷ = 12278257 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12409296 and 12409305.

It is not an unprimeable number, because it can be changed into a prime (12409339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3397 + ... + 6029.

It is an arithmetic number, because the mean of its divisors is an integer number (2070324).

Almost surely, 2^12409329 is an apocalyptic number.

It is an amenable number.

12409329 is a deficient number, since it is larger than the sum of its proper divisors (4153263).

12409329 is a wasteful number, since it uses less digits than its factorization.

12409329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207.

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

The square root of 12409329 is about 3522.6877522710. The cubic root of 12409329 is about 231.5169360669.

The spelling of 12409329 in words is "twelve million, four hundred nine thousand, three hundred twenty-nine".