28444112 has 20 divisors (see below), whose sum is σ = 56889216. Its totient is φ = 13763040.

The previous prime is 28444109. The next prime is 28444139. The reversal of 28444112 is 21144482.

28444112 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28178 + ... + 29169.

Almost surely, 2^28444112 is an apocalyptic number.

It is an amenable number.

28444112 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28444112 is a wasteful number, since it uses less digits than its factorization.

28444112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57386 (or 57380 counting only the distinct ones).

The product of its digits is 2048, while the sum is 26.

The square root of 28444112 is about 5333.3021665756. The cubic root of 28444112 is about 305.2559421120.

Adding to 28444112 its reverse (21144482), we get a palindrome (49588594).

The spelling of 28444112 in words is "twenty-eight million, four hundred forty-four thousand, one hundred twelve".