12309248 has 36 divisors (see below), whose sum is σ = 28084560. Its totient is φ = 5274624.

The previous prime is 12309247. The next prime is 12309259. The reversal of 12309248 is 84290321.

It is a self number, because there is not a number n which added to its sum of digits gives 12309248.

It is not an unprimeable number, because it can be changed into a prime (12309247) 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 3 ways as a sum of consecutive naturals, for example, 1643 + ... + 5226.

Almost surely, 2^12309248 is an apocalyptic number.

It is an amenable number.

12309248 is an abundant number, since it is smaller than the sum of its proper divisors (15775312).

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

12309248 is an frugal number, since it uses more digits than its factorization.

12309248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6892 (or 6878 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 12309248 is about 3508.4537904895. The cubic root of 12309248 is about 230.8928621191.

Adding to 12309248 its reverse (84290321), we get a palindrome (96599569).

The spelling of 12309248 in words is "twelve million, three hundred nine thousand, two hundred forty-eight".