12028845 has 16 divisors (see below), whose sum is σ = 19535040. Its totient is φ = 6319104.

The previous prime is 12028829. The next prime is 12028847. The reversal of 12028845 is 54882021.

It is not a de Polignac number, because 12028845 - 2⁴ = 12028829 is a prime.

It is a super-2 number, since 2×12028845² = 289386224068050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12028847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4980 + ... + 6989.

It is an arithmetic number, because the mean of its divisors is an integer number (1220940).

Almost surely, 2^12028845 is an apocalyptic number.

12028845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12028845 is a deficient number, since it is larger than the sum of its proper divisors (7506195).

12028845 is a wasteful number, since it uses less digits than its factorization.

12028845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12044.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 12028845 is about 3468.2625333155. The cubic root of 12028845 is about 229.1261421823.

The spelling of 12028845 in words is "twelve million, twenty-eight thousand, eight hundred forty-five".