13317426 has 64 divisors (see below), whose sum is σ = 31881600. Its totient is φ = 4105728.

The previous prime is 13317413. The next prime is 13317457. The reversal of 13317426 is 62471331.

13317426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 13317426.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81621 + ... + 81783.

It is an arithmetic number, because the mean of its divisors is an integer number (498150).

Almost surely, 2^13317426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13317426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15940800).

13317426 is an abundant number, since it is smaller than the sum of its proper divisors (18564174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13317426 is a wasteful number, since it uses less digits than its factorization.

13317426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 274 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 13317426 is about 3649.3048653134. The cubic root of 13317426 is about 237.0318816268.

Adding to 13317426 its reverse (62471331), we get a palindrome (75788757).

The spelling of 13317426 in words is "thirteen million, three hundred seventeen thousand, four hundred twenty-six".