12024409 has 2 divisors, whose sum is σ = 12024410. Its totient is φ = 12024408.

The previous prime is 12024407. The next prime is 12024413. The reversal of 12024409 is 90442021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6250000 + 5774409 = 2500^2 + 2403^2 .

It is a cyclic number.

It is not a de Polignac number, because 12024409 - 2¹ = 12024407 is a prime.

Together with 12024407, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12024409.

It is not a weakly prime, because it can be changed into another prime (12024407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6012204 + 6012205.

It is an arithmetic number, because the mean of its divisors is an integer number (6012205).

Almost surely, 2^12024409 is an apocalyptic number.

It is an amenable number.

12024409 is a deficient number, since it is larger than the sum of its proper divisors (1).

12024409 is an equidigital number, since it uses as much as digits as its factorization.

12024409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12024409 is about 3467.6229610498. The cubic root of 12024409 is about 229.0979729903.

The spelling of 12024409 in words is "twelve million, twenty-four thousand, four hundred nine".