13426 has 12 divisors (see below), whose sum is σ = 23598. Its totient is φ = 5712.

The previous prime is 13421. The next prime is 13441. The reversal of 13426 is 62431.

13426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11025 + 2401 = 105^2 + 49^2 .

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (13421) by changing a digit.

13426 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30 + ... + 166.

13426 is a deficient number, since it is larger than the sum of its proper divisors (10172).

13426 is a wasteful number, since it uses less digits than its factorization.

13426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 146 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 13426 is about 115.8706175007. The cubic root of 13426 is about 23.7674294958.

Adding to 13426 its reverse (62431), we get a palindrome (75857).

The spelling of 13426 in words is "thirteen thousand, four hundred twenty-six".