14418409 has 4 divisors (see below), whose sum is σ = 14510404. Its totient is φ = 14326416.

The previous prime is 14418407. The next prime is 14418413. The reversal of 14418409 is 90481441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90481441 = 53 ⋅1707197.

It can be written as a sum of positive squares in 2 ways, for example, as 3790809 + 10627600 = 1947^2 + 3260^2 .

It is a cyclic number.

It is not a de Polignac number, because 14418409 - 2¹ = 14418407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14418403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45762 + ... + 46075.

It is an arithmetic number, because the mean of its divisors is an integer number (3627601).

Almost surely, 2^14418409 is an apocalyptic number.

It is an amenable number.

14418409 is a deficient number, since it is larger than the sum of its proper divisors (91995).

14418409 is an equidigital number, since it uses as much as digits as its factorization.

14418409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91994.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 14418409 is about 3797.1580162011. The cubic root of 14418409 is about 243.3917090612.

The spelling of 14418409 in words is "fourteen million, four hundred eighteen thousand, four hundred nine".