14219409 has 4 divisors (see below), whose sum is σ = 18959216. Its totient is φ = 9479604.

The previous prime is 14219407. The next prime is 14219419. The reversal of 14219409 is 90491241.

14219409 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90491241 = 3 ⋅30163747.

It is not a de Polignac number, because 14219409 - 2¹ = 14219407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14219407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2369899 + ... + 2369904.

It is an arithmetic number, because the mean of its divisors is an integer number (4739804).

Almost surely, 2^14219409 is an apocalyptic number.

It is an amenable number.

14219409 is a deficient number, since it is larger than the sum of its proper divisors (4739807).

14219409 is an equidigital number, since it uses as much as digits as its factorization.

14219409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4739806.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 14219409 is about 3770.8631637862. The cubic root of 14219409 is about 242.2667697699.

The spelling of 14219409 in words is "fourteen million, two hundred nineteen thousand, four hundred nine".