12260728 has 16 divisors (see below), whose sum is σ = 23033880. Its totient is φ = 6118368.

The previous prime is 12260713. The next prime is 12260741. The reversal of 12260728 is 82706221.

It is a junction number, because it is equal to n+sod(n) for n = 12260696 and 12260705.

It is a congruent number.

It is an unprimeable number.

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, 4051 + ... + 6397.

Almost surely, 2^12260728 is an apocalyptic number.

It is an amenable number.

12260728 is a deficient number, since it is larger than the sum of its proper divisors (10773152).

12260728 is a wasteful number, since it uses less digits than its factorization.

12260728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006 (or 3002 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 12260728 is about 3501.5322360361. The cubic root of 12260728 is about 230.5890885200.

Adding to 12260728 its reverse (82706221), we get a palindrome (94966949).

The spelling of 12260728 in words is "twelve million, two hundred sixty thousand, seven hundred twenty-eight".