28080648 has 32 divisors (see below), whose sum is σ = 78002400. Its totient is φ = 9360144.

The previous prime is 28080623. The next prime is 28080653. The reversal of 28080648 is 84608082.

28080648 is a `hidden beast` number, since 2 + 8 + 0 + 8 + 0 + 648 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 7 ways as a sum of consecutive naturals, for example, 64786 + ... + 65217.

It is an arithmetic number, because the mean of its divisors is an integer number (2437575).

Almost surely, 2^28080648 is an apocalyptic number.

It is an amenable number.

28080648 is an abundant number, since it is smaller than the sum of its proper divisors (49921752).

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

28080648 is a wasteful number, since it uses less digits than its factorization.

28080648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130018 (or 130008 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 28080648 is about 5299.1176624038. The cubic root of 28080648 is about 303.9501591882.

The spelling of 28080648 in words is "twenty-eight million, eighty thousand, six hundred forty-eight".