13278264 has 64 divisors (see below), whose sum is σ = 35932800. Its totient is φ = 4074624.

The previous prime is 13278263. The next prime is 13278289. The reversal of 13278264 is 46287231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13278263) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16479 + ... + 17265.

It is an arithmetic number, because the mean of its divisors is an integer number (561450).

Almost surely, 2^13278264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13278264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17966400).

13278264 is an abundant number, since it is smaller than the sum of its proper divisors (22654536).

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

13278264 is a wasteful number, since it uses less digits than its factorization.

13278264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852 (or 848 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 13278264 is about 3643.9352354289. The cubic root of 13278264 is about 236.7993102457.

It can be divided in two parts, 1327 and 8264, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 13278264 in words is "thirteen million, two hundred seventy-eight thousand, two hundred sixty-four".