28828256 has 24 divisors (see below), whose sum is σ = 56929320. Its totient is φ = 14370048.

The previous prime is 28828231. The next prime is 28828259. The reversal of 28828256 is 65282882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28828259) by changing a digit.

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, 10940 + ... + 13316.

It is an arithmetic number, because the mean of its divisors is an integer number (2372055).

Almost surely, 2^28828256 is an apocalyptic number.

It is an amenable number.

28828256 is a deficient number, since it is larger than the sum of its proper divisors (28101064).

28828256 is a wasteful number, since it uses less digits than its factorization.

28828256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766 (or 2758 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The square root of 28828256 is about 5369.1950979639. The cubic root of 28828256 is about 306.6239848181.

The spelling of 28828256 in words is "twenty-eight million, eight hundred twenty-eight thousand, two hundred fifty-six".