12308028 has 12 divisors (see below), whose sum is σ = 28718760. Its totient is φ = 4102672.

The previous prime is 12308027. The next prime is 12308041. The reversal of 12308028 is 82080321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12307989 and 12308007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12308027) 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, 512823 + ... + 512846.

It is an arithmetic number, because the mean of its divisors is an integer number (2393230).

Almost surely, 2^12308028 is an apocalyptic number.

It is an amenable number.

12308028 is an abundant number, since it is smaller than the sum of its proper divisors (16410732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12308028 is a wasteful number, since it uses less digits than its factorization.

12308028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025676 (or 1025674 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 12308028 is about 3508.2799204168. The cubic root of 12308028 is about 230.8852337463.

Adding to 12308028 its reverse (82080321), we get a palindrome (94388349).

The spelling of 12308028 in words is "twelve million, three hundred eight thousand, twenty-eight".