28265804 has 24 divisors (see below), whose sum is σ = 58990848. Its totient is φ = 11586960.

The previous prime is 28265803. The next prime is 28265821. The reversal of 28265804 is 40856282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28265803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21302 + ... + 22589.

It is an arithmetic number, because the mean of its divisors is an integer number (2457952).

Almost surely, 2^28265804 is an apocalyptic number.

It is an amenable number.

28265804 is an abundant number, since it is smaller than the sum of its proper divisors (30725044).

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

28265804 is a wasteful number, since it uses less digits than its factorization.

28265804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43925 (or 43923 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 28265804 is about 5316.5594137562. The cubic root of 28265804 is about 304.6167505544.

The spelling of 28265804 in words is "twenty-eight million, two hundred sixty-five thousand, eight hundred four".