12403264 has 28 divisors (see below), whose sum is σ = 25190704. Its totient is φ = 6056064.

The previous prime is 12403249. The next prime is 12403267. The reversal of 12403264 is 46230421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12403267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499 + ... + 5005.

It is an arithmetic number, because the mean of its divisors is an integer number (899668).

Almost surely, 2^12403264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12403264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12595352).

12403264 is an abundant number, since it is smaller than the sum of its proper divisors (12787440).

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

12403264 is an equidigital number, since it uses as much as digits as its factorization.

12403264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4562 (or 4552 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 12403264 is about 3521.8267986941. The cubic root of 12403264 is about 231.4792123233.

Adding to 12403264 its reverse (46230421), we get a palindrome (58633685).

The spelling of 12403264 in words is "twelve million, four hundred three thousand, two hundred sixty-four".