12304445 has 4 divisors (see below), whose sum is σ = 14765340. Its totient is φ = 9843552.

The previous prime is 12304441. The next prime is 12304463. The reversal of 12304445 is 54440321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9132484 + 3171961 = 3022^2 + 1781^2 .

It is a cyclic number.

It is not a de Polignac number, because 12304445 - 2² = 12304441 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12304445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12304441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1230440 + ... + 1230449.

It is an arithmetic number, because the mean of its divisors is an integer number (3691335).

Almost surely, 2^12304445 is an apocalyptic number.

It is an amenable number.

12304445 is a deficient number, since it is larger than the sum of its proper divisors (2460895).

12304445 is an equidigital number, since it uses as much as digits as its factorization.

12304445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460894.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 12304445 is about 3507.7692341430. The cubic root of 12304445 is about 230.8628271761.

Adding to 12304445 its reverse (54440321), we get a palindrome (66744766).

The spelling of 12304445 in words is "twelve million, three hundred four thousand, four hundred forty-five".