13422305 has 16 divisors (see below), whose sum is σ = 17817744. Its totient is φ = 9642240.

The previous prime is 13422289. The next prime is 13422313. The reversal of 13422305 is 50322431.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 238144 + 13184161 = 488^2 + 3631^2 .

It is not a de Polignac number, because 13422305 - 2⁴ = 13422289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386 + ... + 5195.

It is an arithmetic number, because the mean of its divisors is an integer number (1113609).

Almost surely, 2^13422305 is an apocalyptic number.

It is an amenable number.

13422305 is a deficient number, since it is larger than the sum of its proper divisors (4395439).

13422305 is a wasteful number, since it uses less digits than its factorization.

13422305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5636.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13422305 is about 3663.6464076109. The cubic root of 13422305 is about 237.6524893293.

Adding to 13422305 its reverse (50322431), we get a palindrome (63744736).

The spelling of 13422305 in words is "thirteen million, four hundred twenty-two thousand, three hundred five".