14401405 has 4 divisors (see below), whose sum is σ = 17281692. Its totient is φ = 11521120.

The previous prime is 14401403. The next prime is 14401421. The reversal of 14401405 is 50410441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50410441 = 1097 ⋅45953.

It can be written as a sum of positive squares in 2 ways, for example, as 2277081 + 12124324 = 1509^2 + 3482^2 .

It is not a de Polignac number, because 14401405 - 2¹ = 14401403 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 (14401403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440136 + ... + 1440145.

It is an arithmetic number, because the mean of its divisors is an integer number (4320423).

Almost surely, 2^14401405 is an apocalyptic number.

It is an amenable number.

14401405 is a deficient number, since it is larger than the sum of its proper divisors (2880287).

14401405 is an equidigital number, since it uses as much as digits as its factorization.

14401405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880286.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 14401405 is about 3794.9183126913. The cubic root of 14401405 is about 243.2959920599.

Adding to 14401405 its reverse (50410441), we get a palindrome (64811846).

The spelling of 14401405 in words is "fourteen million, four hundred one thousand, four hundred five".