13321266 has 32 divisors (see below), whose sum is σ = 31501440. Its totient is φ = 3674496.

The previous prime is 13321229. The next prime is 13321279. The reversal of 13321266 is 66212331.

It is a happy number.

It is a super-2 number, since 2×13321266² = 354912255685512, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4251 + ... + 6686.

It is an arithmetic number, because the mean of its divisors is an integer number (984420).

Almost surely, 2^13321266 is an apocalyptic number.

13321266 is an abundant number, since it is smaller than the sum of its proper divisors (18180174).

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

13321266 is a wasteful number, since it uses less digits than its factorization.

13321266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10978.

The product of its digits is 1296, while the sum is 24.

The square root of 13321266 is about 3649.8309549896. The cubic root of 13321266 is about 237.0546616784.

Adding to 13321266 its reverse (66212331), we get a palindrome (79533597).

The spelling of 13321266 in words is "thirteen million, three hundred twenty-one thousand, two hundred sixty-six".