28845882 has 40 divisors (see below), whose sum is σ = 69613236. Its totient is φ = 8875008.

The previous prime is 28845881. The next prime is 28845893. The reversal of 28845882 is 28854882.

It can be written as a sum of positive squares in 2 ways, for example, as 21986721 + 6859161 = 4689^2 + 2619^2 .

It is not an unprimeable number, because it can be changed into a prime (28845881) 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 19 ways as a sum of consecutive naturals, for example, 4743 + ... + 8954.

Almost surely, 2^28845882 is an apocalyptic number.

28845882 is an abundant number, since it is smaller than the sum of its proper divisors (40767354).

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

28845882 is a wasteful number, since it uses less digits than its factorization.

28845882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13724 (or 13715 counting only the distinct ones).

The product of its digits is 327680, while the sum is 45.

The square root of 28845882 is about 5370.8362477365. The cubic root of 28845882 is about 306.6864634878.

The spelling of 28845882 in words is "twenty-eight million, eight hundred forty-five thousand, eight hundred eighty-two".