12390668 has 12 divisors (see below), whose sum is σ = 21738360. Its totient is φ = 6179712.

The previous prime is 12390667. The next prime is 12390673. The reversal of 12390668 is 86609321.

It is not an unprimeable number, because it can be changed into a prime (12390667) 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, 2021 + ... + 5372.

It is an arithmetic number, because the mean of its divisors is an integer number (1811530).

Almost surely, 2^12390668 is an apocalyptic number.

It is an amenable number.

12390668 is a deficient number, since it is larger than the sum of its proper divisors (9347692).

12390668 is a wasteful number, since it uses less digits than its factorization.

12390668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7816 (or 7814 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 12390668 is about 3520.0380679760. The cubic root of 12390668 is about 231.4008270498.

Adding to 12390668 its reverse (86609321), we get a palindrome (98999989).

The spelling of 12390668 in words is "twelve million, three hundred ninety thousand, six hundred sixty-eight".