13266944 has 52 divisors (see below), whose sum is σ = 27521760. Its totient is φ = 6389760.

The previous prime is 13266937. The next prime is 13267031. The reversal of 13266944 is 44966231.

Its product of digits (31104) is a multiple of the sum of its prime factors (144).

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 167897 + ... + 167975.

Almost surely, 2^13266944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13266944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13760880).

13266944 is an abundant number, since it is smaller than the sum of its proper divisors (14254816).

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

13266944 is an frugal number, since it uses more digits than its factorization.

13266944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 122 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 13266944 is about 3642.3816384338. The cubic root of 13266944 is about 236.7319989792.

It can be divided in two parts, 132 and 66944, that added together give a palindrome (67076).

The spelling of 13266944 in words is "thirteen million, two hundred sixty-six thousand, nine hundred forty-four".