12409568 has 12 divisors (see below), whose sum is σ = 24431400. Its totient is φ = 6204768.

The previous prime is 12409561. The next prime is 12409571. The reversal of 12409568 is 86590421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12409561) 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 as a sum of consecutive naturals, namely, 193868 + ... + 193931.

It is an arithmetic number, because the mean of its divisors is an integer number (2035950).

Almost surely, 2^12409568 is an apocalyptic number.

It is an amenable number.

12409568 is a deficient number, since it is larger than the sum of its proper divisors (12021832).

12409568 is an equidigital number, since it uses as much as digits as its factorization.

12409568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387809 (or 387801 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 12409568 is about 3522.7216750689. The cubic root of 12409568 is about 231.5184223732.

Adding to 12409568 its reverse (86590421), we get a palindrome (98999989).

The spelling of 12409568 in words is "twelve million, four hundred nine thousand, five hundred sixty-eight".