12780268 has 12 divisors (see below), whose sum is σ = 22404760. Its totient is φ = 6378912.

The previous prime is 12780263. The next prime is 12780269. The reversal of 12780268 is 86208721.

It is not an unprimeable number, because it can be changed into a prime (12780263) 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, 88 + ... + 5056.

Almost surely, 2^12780268 is an apocalyptic number.

It is an amenable number.

12780268 is a deficient number, since it is larger than the sum of its proper divisors (9624492).

12780268 is a wasteful number, since it uses less digits than its factorization.

12780268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616 (or 5614 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 12780268 is about 3574.9500695814. The cubic root of 12780268 is about 233.8011557422.

Adding to 12780268 its reverse (86208721), we get a palindrome (98988989).

The spelling of 12780268 in words is "twelve million, seven hundred eighty thousand, two hundred sixty-eight".