12043409 has 8 divisors (see below), whose sum is σ = 13785408. Its totient is φ = 10306800.

The previous prime is 12043403. The next prime is 12043417. The reversal of 12043409 is 90434021.

12043409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-12043409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12043403) 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, 6539 + ... + 8175.

It is an arithmetic number, because the mean of its divisors is an integer number (1723176).

Almost surely, 2^12043409 is an apocalyptic number.

It is an amenable number.

12043409 is a deficient number, since it is larger than the sum of its proper divisors (1741999).

12043409 is a wasteful number, since it uses less digits than its factorization.

12043409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 12043409 is about 3470.3615085463. The cubic root of 12043409 is about 229.2185768613.

The spelling of 12043409 in words is "twelve million, forty-three thousand, four hundred nine".