12809248 has 24 divisors (see below), whose sum is σ = 25298028. Its totient is φ = 6384384.

The previous prime is 12809221. The next prime is 12809281. The reversal of 12809248 is 84290821.

It can be written as a sum of positive squares in 2 ways, for example, as 9809424 + 2999824 = 3132^2 + 1732^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19290 + ... + 19942.

Almost surely, 2^12809248 is an apocalyptic number.

It is an amenable number.

12809248 is a deficient number, since it is larger than the sum of its proper divisors (12488780).

12809248 is an equidigital number, since it uses as much as digits as its factorization.

12809248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 12809248 is about 3579.0009779267. Note that the first 3 decimals coincide. The cubic root of 12809248 is about 233.9777415700.

It can be divided in two parts, 128092 and 48, that multiplied together give a palindrome (6148416).

The spelling of 12809248 in words is "twelve million, eight hundred nine thousand, two hundred forty-eight".