28255892 has 12 divisors (see below), whose sum is σ = 56511840. Its totient is φ = 12109656.

The previous prime is 28255879. The next prime is 28255897. The reversal of 28255892 is 29855282.

28255892 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28255897) 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, 504542 + ... + 504597.

It is an arithmetic number, because the mean of its divisors is an integer number (4709320).

Almost surely, 2^28255892 is an apocalyptic number.

It is an amenable number.

28255892 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.

28255892 is a wasteful number, since it uses less digits than its factorization.

28255892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009150 (or 1009148 counting only the distinct ones).

The product of its digits is 115200, while the sum is 41.

The square root of 28255892 is about 5315.6271502053. The cubic root of 28255892 is about 304.5811396299.

The spelling of 28255892 in words is "twenty-eight million, two hundred fifty-five thousand, eight hundred ninety-two".