12028816 has 20 divisors (see below), whose sum is σ = 24319872. Its totient is φ = 5752736.

The previous prime is 12028801. The next prime is 12028817. The reversal of 12028816 is 61882021.

12028816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12028817) 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, 15976 + ... + 16711.

Almost surely, 2^12028816 is an apocalyptic number.

12028816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12028816 is an abundant number, since it is smaller than the sum of its proper divisors (12291056).

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

12028816 is a wasteful number, since it uses less digits than its factorization.

12028816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32718 (or 32712 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 12028816 is about 3468.2583525453. The cubic root of 12028816 is about 229.1259580510.

The spelling of 12028816 in words is "twelve million, twenty-eight thousand, eight hundred sixteen".