28285448 has 16 divisors (see below), whose sum is σ = 53551680. Its totient is φ = 14005008.

The previous prime is 28285417. The next prime is 28285451. The reversal of 28285448 is 84458282.

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, 16340 + ... + 17987.

It is an arithmetic number, because the mean of its divisors is an integer number (3346980).

Almost surely, 2^28285448 is an apocalyptic number.

It is an amenable number.

28285448 is a deficient number, since it is larger than the sum of its proper divisors (25266232).

28285448 is a wasteful number, since it uses less digits than its factorization.

28285448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34436 (or 34432 counting only the distinct ones).

The product of its digits is 163840, while the sum is 41.

The square root of 28285448 is about 5318.4065282752. The cubic root of 28285448 is about 304.6873011246.

The spelling of 28285448 in words is "twenty-eight million, two hundred eighty-five thousand, four hundred forty-eight".