14909409 has 12 divisors (see below), whose sum is σ = 22118356. Its totient is φ = 9670752.

The previous prime is 14909399. The next prime is 14909413. The reversal of 14909409 is 90490941.

It can be written as a sum of positive squares in 2 ways, for example, as 11881809 + 3027600 = 3447^2 + 1740^2 .

It is not a de Polignac number, because 14909409 - 2⁹ = 14908897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14909429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22054 + ... + 22719.

Almost surely, 2^14909409 is an apocalyptic number.

It is an amenable number.

14909409 is a deficient number, since it is larger than the sum of its proper divisors (7208947).

14909409 is a wasteful number, since it uses less digits than its factorization.

14909409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44816 (or 44813 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 14909409 is about 3861.2703868028. The cubic root of 14909409 is about 246.1237232094.

The spelling of 14909409 in words is "fourteen million, nine hundred nine thousand, four hundred nine".