28449882 has 24 divisors (see below), whose sum is σ = 62255700. Its totient is φ = 9388800.

The previous prime is 28449871. The next prime is 28449887. The reversal of 28449882 is 28894482.

It is a happy number.

28449882 is a `hidden beast` number, since 2 + 84 + 498 + 82 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28100601 + 349281 = 5301^2 + 591^2 .

It is not an unprimeable number, because it can be changed into a prime (28449887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6007 + ... + 9642.

Almost surely, 2^28449882 is an apocalyptic number.

28449882 is an abundant number, since it is smaller than the sum of its proper divisors (33805818).

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

28449882 is a wasteful number, since it uses less digits than its factorization.

28449882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15758 (or 15755 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 28449882 is about 5333.8430798065. The cubic root of 28449882 is about 305.2765815060.

The spelling of 28449882 in words is "twenty-eight million, four hundred forty-nine thousand, eight hundred eighty-two".