28844012 has 24 divisors (see below), whose sum is σ = 52321920. Its totient is φ = 13898880.

The previous prime is 28843993. The next prime is 28844021. The reversal of 28844012 is 21044882.

It is a super-2 number, since 2×28844012² = 1663954056512288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56414 + ... + 56922.

It is an arithmetic number, because the mean of its divisors is an integer number (2180080).

Almost surely, 2^28844012 is an apocalyptic number.

It is an amenable number.

28844012 is a deficient number, since it is larger than the sum of its proper divisors (23477908).

28844012 is a wasteful number, since it uses less digits than its factorization.

28844012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 28844012 is about 5370.6621565688. The cubic root of 28844012 is about 306.6798361284.

Adding to 28844012 its reverse (21044882), we get a palindrome (49888894).

The spelling of 28844012 in words is "twenty-eight million, eight hundred forty-four thousand, twelve".