12012028 has 48 divisors (see below), whose sum is σ = 25742080. Its totient is φ = 4790016.

The previous prime is 12012017. The next prime is 12012037. The reversal of 12012028 is 82021021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35476 + ... + 35812.

Almost surely, 2^12012028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12871040).

12012028 is an abundant number, since it is smaller than the sum of its proper divisors (13730052).

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

12012028 is a wasteful number, since it uses less digits than its factorization.

12012028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 12012028 is about 3465.8372725793. The cubic root of 12012028 is about 229.0193153174.

Adding to 12012028 its reverse (82021021), we get a palindrome (94033049).

The spelling of 12012028 in words is "twelve million, twelve thousand, twenty-eight".