12028680 has 48 divisors (see below), whose sum is σ = 39094380. Its totient is φ = 3207552.

The previous prime is 12028669. The next prime is 12028693. The reversal of 12028680 is 8682021.

It can be written as a sum of positive squares in 2 ways, for example, as 11410884 + 617796 = 3378^2 + 786^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16347 + ... + 17066.

Almost surely, 2^12028680 is an apocalyptic number.

12028680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12028680 is an abundant number, since it is smaller than the sum of its proper divisors (27065700).

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

12028680 is a wasteful number, since it uses less digits than its factorization.

12028680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33430 (or 33423 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 12028680 is about 3468.2387461073. The cubic root of 12028680 is about 229.1250945343.

The spelling of 12028680 in words is "twelve million, twenty-eight thousand, six hundred eighty".