13668280 has 32 divisors (see below), whose sum is σ = 31816800. Its totient is φ = 5278336.

The previous prime is 13668269. The next prime is 13668283. The reversal of 13668280 is 8286631.

13668280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13668283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4732 + ... + 7051.

It is an arithmetic number, because the mean of its divisors is an integer number (994275).

Almost surely, 2^13668280 is an apocalyptic number.

13668280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13668280 is an abundant number, since it is smaller than the sum of its proper divisors (18148520).

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

13668280 is a wasteful number, since it uses less digits than its factorization.

13668280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11823 (or 11819 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 13668280 is about 3697.0636997488. The cubic root of 13668280 is about 239.0954375709.

The spelling of 13668280 in words is "thirteen million, six hundred sixty-eight thousand, two hundred eighty".