28518882 has 24 divisors (see below), whose sum is σ = 66350736. Its totient is φ = 8148168.

The previous prime is 28518881. The next prime is 28518899. The reversal of 28518882 is 28881582.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (28518881) 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 11 ways as a sum of consecutive naturals, for example, 48208 + ... + 48795.

It is an arithmetic number, because the mean of its divisors is an integer number (2764614).

Almost surely, 2^28518882 is an apocalyptic number.

28518882 is an abundant number, since it is smaller than the sum of its proper divisors (37831854).

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

28518882 is a wasteful number, since it uses less digits than its factorization.

28518882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97022 (or 97015 counting only the distinct ones).

The product of its digits is 81920, while the sum is 42.

The square root of 28518882 is about 5340.3072945290. The cubic root of 28518882 is about 305.5231798106.

The spelling of 28518882 in words is "twenty-eight million, five hundred eighteen thousand, eight hundred eighty-two".