28382884 has 12 divisors (see below), whose sum is σ = 52284400. Its totient is φ = 13444488.

The previous prime is 28382869. The next prime is 28382891. The reversal of 28382884 is 48828382.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28382884.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186654 + ... + 186805.

Almost surely, 2^28382884 is an apocalyptic number.

It is an amenable number.

28382884 is a deficient number, since it is larger than the sum of its proper divisors (23901516).

28382884 is a wasteful number, since it uses less digits than its factorization.

28382884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373482 (or 373480 counting only the distinct ones).

The product of its digits is 196608, while the sum is 43.

The square root of 28382884 is about 5327.5589156761. The cubic root of 28382884 is about 305.0367562976.

The spelling of 28382884 in words is "twenty-eight million, three hundred eighty-two thousand, eight hundred eighty-four".