13226660 has 24 divisors (see below), whose sum is σ = 29238720. Its totient is φ = 5012064.

The previous prime is 13226623. The next prime is 13226683. The reversal of 13226660 is 6662231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17024 + ... + 17783.

It is an arithmetic number, because the mean of its divisors is an integer number (1218280).

Almost surely, 2^13226660 is an apocalyptic number.

13226660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13226660 is an abundant number, since it is smaller than the sum of its proper divisors (16012060).

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

13226660 is a wasteful number, since it uses less digits than its factorization.

13226660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34835 (or 34833 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 13226660 is about 3636.8475359850. The cubic root of 13226660 is about 236.4921502132.

Adding to 13226660 its reverse (6662231), we get a palindrome (19888891).

The spelling of 13226660 in words is "thirteen million, two hundred twenty-six thousand, six hundred sixty".