28855308 has 48 divisors (see below), whose sum is σ = 69543936. Its totient is φ = 9306240.

The previous prime is 28855297. The next prime is 28855381. The reversal of 28855308 is 80355882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109585 + ... + 109847.

It is an arithmetic number, because the mean of its divisors is an integer number (1448832).

Almost surely, 2^28855308 is an apocalyptic number.

It is an amenable number.

28855308 is an abundant number, since it is smaller than the sum of its proper divisors (40688628).

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

28855308 is a wasteful number, since it uses less digits than its factorization.

28855308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 28855308 is about 5371.7136930406. The cubic root of 28855308 is about 306.7198652721.

The spelling of 28855308 in words is "twenty-eight million, eight hundred fifty-five thousand, three hundred eight".