13278411 has 20 divisors (see below), whose sum is σ = 21004632. Its totient is φ = 8330688.

The previous prime is 13278401. The next prime is 13278413. The reversal of 13278411 is 11487231.

It is not a de Polignac number, because 13278411 - 2⁶ = 13278347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13278413) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 3445 + ... + 6198.

Almost surely, 2^13278411 is an apocalyptic number.

13278411 is a deficient number, since it is larger than the sum of its proper divisors (7726221).

13278411 is an equidigital number, since it uses as much as digits as its factorization.

13278411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9672 (or 9663 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 13278411 is about 3643.9554058742. The cubic root of 13278411 is about 236.8001840891.

It can be divided in two parts, 13278 and 411, that added together give a square (13689 = 117²).

The spelling of 13278411 in words is "thirteen million, two hundred seventy-eight thousand, four hundred eleven".