12403304 has 8 divisors (see below), whose sum is σ = 23256210. Its totient is φ = 6201648.

The previous prime is 12403301. The next prime is 12403309. The reversal of 12403304 is 40330421.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 362404 = 3470^2 + 602^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (12403301) 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 as a sum of consecutive naturals, namely, 775199 + ... + 775214.

Almost surely, 2^12403304 is an apocalyptic number.

It is an amenable number.

12403304 is a deficient number, since it is larger than the sum of its proper divisors (10852906).

12403304 is a wasteful number, since it uses less digits than its factorization.

12403304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550419 (or 1550415 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 12403304 is about 3521.8324775605. The cubic root of 12403304 is about 231.4794611599.

Adding to 12403304 its reverse (40330421), we get a palindrome (52733725).

The spelling of 12403304 in words is "twelve million, four hundred three thousand, three hundred four".