28912448 has 28 divisors (see below), whose sum is σ = 57619392. Its totient is φ = 14394240.

The previous prime is 28912381. The next prime is 28912463. The reversal of 28912448 is 84421982.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 16511 + ... + 18177.

Almost surely, 2^28912448 is an apocalyptic number.

It is an amenable number.

28912448 is a deficient number, since it is larger than the sum of its proper divisors (28706944).

28912448 is a wasteful number, since it uses less digits than its factorization.

28912448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950 (or 1940 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 28912448 is about 5377.0296632992. The cubic root of 28912448 is about 306.9221898883.

The spelling of 28912448 in words is "twenty-eight million, nine hundred twelve thousand, four hundred forty-eight".