12480312 has 96 divisors (see below), whose sum is σ = 35970480. Its totient is φ = 3594240.

The previous prime is 12480269. The next prime is 12480313. The reversal of 12480312 is 21308421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12480313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68862 + ... + 69042.

Almost surely, 2^12480312 is an apocalyptic number.

12480312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12480312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17985240).

12480312 is an abundant number, since it is smaller than the sum of its proper divisors (23490168).

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

12480312 is a wasteful number, since it uses less digits than its factorization.

12480312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12480312 is about 3532.7485050595. The cubic root of 12480312 is about 231.9575328532.

Adding to 12480312 its reverse (21308421), we get a palindrome (33788733).

The spelling of 12480312 in words is "twelve million, four hundred eighty thousand, three hundred twelve".