14209909 has 16 divisors (see below), whose sum is σ = 17601408. Its totient is φ = 11192832.

The previous prime is 14209907. The next prime is 14209919. The reversal of 14209909 is 90990241.

It is not a de Polignac number, because 14209909 - 2¹ = 14209907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14209907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3729 + ... + 6505.

It is an arithmetic number, because the mean of its divisors is an integer number (1100088).

Almost surely, 2^14209909 is an apocalyptic number.

It is an amenable number.

14209909 is a deficient number, since it is larger than the sum of its proper divisors (3391499).

14209909 is a wasteful number, since it uses less digits than its factorization.

14209909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 14209909 is about 3769.6032947778. The cubic root of 14209909 is about 242.2128048676.

The spelling of 14209909 in words is "fourteen million, two hundred nine thousand, nine hundred nine".