14440409 has 2 divisors, whose sum is σ = 14440410. Its totient is φ = 14440408.

The previous prime is 14440381. The next prime is 14440457. The reversal of 14440409 is 90404441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13579225 + 861184 = 3685^2 + 928^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14440409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14440499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7220204 + 7220205.

It is an arithmetic number, because the mean of its divisors is an integer number (7220205).

Almost surely, 2^14440409 is an apocalyptic number.

It is an amenable number.

14440409 is a deficient number, since it is larger than the sum of its proper divisors (1).

14440409 is an equidigital number, since it uses as much as digits as its factorization.

14440409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 14440409 is about 3800.0538154084. The cubic root of 14440409 is about 243.5154373796.

The spelling of 14440409 in words is "fourteen million, four hundred forty thousand, four hundred nine".