28048872 has 32 divisors (see below), whose sum is σ = 71448480. Its totient is φ = 9172800.

The previous prime is 28048859. The next prime is 28048897. The reversal of 28048872 is 27884082.

It is a self number, because there is not a number n which added to its sum of digits gives 28048872.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9754 + ... + 12297.

It is an arithmetic number, because the mean of its divisors is an integer number (2232765).

Almost surely, 2^28048872 is an apocalyptic number.

It is an amenable number.

28048872 is an abundant number, since it is smaller than the sum of its proper divisors (43399608).

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

28048872 is a wasteful number, since it uses less digits than its factorization.

28048872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22113 (or 22109 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 28048872 is about 5296.1185787329. The cubic root of 28048872 is about 303.8354661363.

It can be divided in two parts, 28048 and 872, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 28048872 in words is "twenty-eight million, forty-eight thousand, eight hundred seventy-two".