14026409 has 2 divisors, whose sum is σ = 14026410. Its totient is φ = 14026408.

The previous prime is 14026399. The next prime is 14026417. The reversal of 14026409 is 90462041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13987600 + 38809 = 3740^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 14026409 - 2⁴ = 14026393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (14026429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7013204 + 7013205.

It is an arithmetic number, because the mean of its divisors is an integer number (7013205).

Almost surely, 2^14026409 is an apocalyptic number.

It is an amenable number.

14026409 is a deficient number, since it is larger than the sum of its proper divisors (1).

14026409 is an equidigital number, since it uses as much as digits as its factorization.

14026409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 14026409 is about 3745.1847751479. The cubic root of 14026409 is about 241.1656775296.

The spelling of 14026409 in words is "fourteen million, twenty-six thousand, four hundred nine".