12045664 has 24 divisors (see below), whose sum is σ = 23956128. Its totient is φ = 5961600.

The previous prime is 12045661. The next prime is 12045689. The reversal of 12045664 is 46654021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045661) 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, 1369 + ... + 5095.

It is an arithmetic number, because the mean of its divisors is an integer number (998172).

Almost surely, 2^12045664 is an apocalyptic number.

It is an amenable number.

12045664 is a deficient number, since it is larger than the sum of its proper divisors (11910464).

12045664 is a wasteful number, since it uses less digits than its factorization.

12045664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838 (or 3830 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 12045664 is about 3470.6863874456. The cubic root of 12045664 is about 229.2328822138.

Adding to 12045664 its reverse (46654021), we get a palindrome (58699685).

The spelling of 12045664 in words is "twelve million, forty-five thousand, six hundred sixty-four".