28548928 has 28 divisors (see below), whose sum is σ = 57863232. Its totient is φ = 13969280.

The previous prime is 28548907. The next prime is 28548937. The reversal of 28548928 is 82984582.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1738 + ... + 7753.

It is an arithmetic number, because the mean of its divisors is an integer number (2066544).

Almost surely, 2^28548928 is an apocalyptic number.

It is an amenable number.

28548928 is an abundant number, since it is smaller than the sum of its proper divisors (29314304).

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

28548928 is an equidigital number, since it uses as much as digits as its factorization.

28548928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9550 (or 9540 counting only the distinct ones).

The product of its digits is 368640, while the sum is 46.

The square root of 28548928 is about 5343.1196879726. The cubic root of 28548928 is about 305.6304365581.

The spelling of 28548928 in words is "twenty-eight million, five hundred forty-eight thousand, nine hundred twenty-eight".