12003028 has 6 divisors (see below), whose sum is σ = 21005306. Its totient is φ = 6001512.

The previous prime is 12003011. The next prime is 12003073. The reversal of 12003028 is 82030021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11819844 + 183184 = 3438^2 + 428^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1500375 + ... + 1500382.

Almost surely, 2^12003028 is an apocalyptic number.

It is an amenable number.

12003028 is a deficient number, since it is larger than the sum of its proper divisors (9002278).

12003028 is a wasteful number, since it uses less digits than its factorization.

12003028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000761 (or 3000759 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12003028 is about 3464.5386417242. The cubic root of 12003028 is about 228.9621035286.

Adding to 12003028 its reverse (82030021), we get a palindrome (94033049).

The spelling of 12003028 in words is "twelve million, three thousand, twenty-eight".