13278441 has 16 divisors (see below), whose sum is σ = 19415808. Its totient is φ = 8005200.

The previous prime is 13278439. The next prime is 13278493. The reversal of 13278441 is 14487231.

It is not a de Polignac number, because 13278441 - 2¹ = 13278439 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13278399 and 13278408.

It is not an unprimeable number, because it can be changed into a prime (13278401) 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 15 ways as a sum of consecutive naturals, for example, 6010 + ... + 7916.

It is an arithmetic number, because the mean of its divisors is an integer number (1213488).

Almost surely, 2^13278441 is an apocalyptic number.

13278441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13278441 is a deficient number, since it is larger than the sum of its proper divisors (6137367).

13278441 is a wasteful number, since it uses less digits than its factorization.

13278441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132.

The product of its digits is 5376, while the sum is 30.

The square root of 13278441 is about 3643.9595222779. The cubic root of 13278441 is about 236.8003624237.

The spelling of 13278441 in words is "thirteen million, two hundred seventy-eight thousand, four hundred forty-one".