14002409 has 2 divisors, whose sum is σ = 14002410. Its totient is φ = 14002408.

The previous prime is 14002403. The next prime is 14002427. The reversal of 14002409 is 90420041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12759184 + 1243225 = 3572^2 + 1115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14002409 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (14002403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7001204 + 7001205.

It is an arithmetic number, because the mean of its divisors is an integer number (7001205).

Almost surely, 2^14002409 is an apocalyptic number.

It is an amenable number.

14002409 is a deficient number, since it is larger than the sum of its proper divisors (1).

14002409 is an equidigital number, since it uses as much as digits as its factorization.

14002409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 14002409 is about 3741.9792890929. The cubic root of 14002409 is about 241.0280495121.

The spelling of 14002409 in words is "fourteen million, two thousand, four hundred nine".