28384672 has 24 divisors (see below), whose sum is σ = 56560896. Its totient is φ = 14020032.

The previous prime is 28384667. The next prime is 28384673. The reversal of 28384672 is 27648382.

It is not an unprimeable number, because it can be changed into a prime (28384673) by changing a digit.

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, 2688 + ... + 7999.

It is an arithmetic number, because the mean of its divisors is an integer number (2356704).

Almost surely, 2^28384672 is an apocalyptic number.

It is an amenable number.

28384672 is a deficient number, since it is larger than the sum of its proper divisors (28176224).

28384672 is a wasteful number, since it uses less digits than its factorization.

28384672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10780 (or 10772 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 28384672 is about 5327.7267197183. The cubic root of 28384672 is about 305.0431614991.

The spelling of 28384672 in words is "twenty-eight million, three hundred eighty-four thousand, six hundred seventy-two".