14402009 has 16 divisors (see below), whose sum is σ = 15966720. Its totient is φ = 12929280.

The previous prime is 14401993. The next prime is 14402027. The reversal of 14402009 is 90020441.

It is a cyclic number.

It is not a de Polignac number, because 14402009 - 2⁴ = 14401993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14405009) 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, 64472 + ... + 64694.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

Almost surely, 2^14402009 is an apocalyptic number.

It is an amenable number.

14402009 is a deficient number, since it is larger than the sum of its proper divisors (1564711).

14402009 is a wasteful number, since it uses less digits than its factorization.

14402009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400.

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

The square root of 14402009 is about 3794.9978919625. The cubic root of 14402009 is about 243.2993933189.

The spelling of 14402009 in words is "fourteen million, four hundred two thousand, nine".