28268056 has 16 divisors (see below), whose sum is σ = 54131040. Its totient is φ = 13833120.

The previous prime is 28268047. The next prime is 28268087. The reversal of 28268056 is 65086282.

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 in 3 ways as a sum of consecutive naturals, for example, 37215 + ... + 37966.

It is an arithmetic number, because the mean of its divisors is an integer number (3383190).

Almost surely, 2^28268056 is an apocalyptic number.

It is an amenable number.

28268056 is a deficient number, since it is larger than the sum of its proper divisors (25862984).

28268056 is a wasteful number, since it uses less digits than its factorization.

28268056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75234 (or 75230 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 28268056 is about 5316.7712006442. The cubic root of 28268056 is about 304.6248401728.

The spelling of 28268056 in words is "twenty-eight million, two hundred sixty-eight thousand, fifty-six".