12182728 has 8 divisors (see below), whose sum is σ = 22842630. Its totient is φ = 6091360.

The previous prime is 12182719. The next prime is 12182749. The reversal of 12182728 is 82728121.

12182728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9998244 + 2184484 = 3162^2 + 1478^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12182728.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761413 + ... + 761428.

Almost surely, 2^12182728 is an apocalyptic number.

It is an amenable number.

12182728 is a deficient number, since it is larger than the sum of its proper divisors (10659902).

12182728 is a wasteful number, since it uses less digits than its factorization.

12182728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522847 (or 1522843 counting only the distinct ones).

The product of its digits is 3584, while the sum is 31.

The square root of 12182728 is about 3490.3764839914. The cubic root of 12182728 is about 230.0990625570.

The spelling of 12182728 in words is "twelve million, one hundred eighty-two thousand, seven hundred twenty-eight".