13266140 has 24 divisors (see below), whose sum is σ = 28758912. Its totient is φ = 5135040.

The previous prime is 13266119. The next prime is 13266151. The reversal of 13266140 is 4166231.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 10079 + ... + 11318.

It is an arithmetic number, because the mean of its divisors is an integer number (1198288).

Almost surely, 2^13266140 is an apocalyptic number.

13266140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13266140 is an abundant number, since it is smaller than the sum of its proper divisors (15492772).

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

13266140 is a wasteful number, since it uses less digits than its factorization.

13266140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21437 (or 21435 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 13266140 is about 3642.2712694142. The cubic root of 13266140 is about 236.7272167583.

Subtracting from 13266140 its reverse (4166231), we obtain a palindrome (9099909).

The spelling of 13266140 in words is "thirteen million, two hundred sixty-six thousand, one hundred forty".