13266380 has 12 divisors (see below), whose sum is σ = 27859440. Its totient is φ = 5306544.

The previous prime is 13266371. The next prime is 13266397. The reversal of 13266380 is 8366231.

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 3 ways as a sum of consecutive naturals, for example, 331640 + ... + 331679.

It is an arithmetic number, because the mean of its divisors is an integer number (2321620).

Almost surely, 2^13266380 is an apocalyptic number.

13266380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13266380 is an abundant number, since it is smaller than the sum of its proper divisors (14593060).

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

13266380 is a wasteful number, since it uses less digits than its factorization.

13266380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663328 (or 663326 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 13266380 is about 3642.3042157404. The cubic root of 13266380 is about 236.7286443072.

The spelling of 13266380 in words is "thirteen million, two hundred sixty-six thousand, three hundred eighty".