13278286 has 8 divisors (see below), whose sum is σ = 22762800. Its totient is φ = 5690688.

The previous prime is 13278263. The next prime is 13278289. The reversal of 13278286 is 68287231.

13278286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13278289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474211 + ... + 474238.

It is an arithmetic number, because the mean of its divisors is an integer number (2845350).

Almost surely, 2^13278286 is an apocalyptic number.

13278286 is a deficient number, since it is larger than the sum of its proper divisors (9484514).

13278286 is an equidigital number, since it uses as much as digits as its factorization.

13278286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948458.

The product of its digits is 32256, while the sum is 37.

The square root of 13278286 is about 3643.9382541421. The cubic root of 13278286 is about 236.7994410254.

The spelling of 13278286 in words is "thirteen million, two hundred seventy-eight thousand, two hundred eighty-six".