28368560 has 40 divisors (see below), whose sum is σ = 71955216. Its totient is φ = 10315520.

The previous prime is 28368559. The next prime is 28368601. The reversal of 28368560 is 6586382.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15239 + ... + 16998.

Almost surely, 2^28368560 is an apocalyptic number.

28368560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28368560 is an abundant number, since it is smaller than the sum of its proper divisors (43586656).

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

28368560 is a wasteful number, since it uses less digits than its factorization.

28368560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32261 (or 32255 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 28368560 is about 5326.2144155113. The cubic root of 28368560 is about 304.9854333274.

The spelling of 28368560 in words is "twenty-eight million, three hundred sixty-eight thousand, five hundred sixty".