28000048 has 20 divisors (see below), whose sum is σ = 55574568. Its totient is φ = 13658240.

The previous prime is 28000031. The next prime is 28000061. The reversal of 28000048 is 84000082.

It is a junction number, because it is equal to n+sod(n) for n = 27999992 and 28000028.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20686 + ... + 21997.

Almost surely, 2^28000048 is an apocalyptic number.

It is an amenable number.

28000048 is a deficient number, since it is larger than the sum of its proper divisors (27574520).

28000048 is a wasteful number, since it uses less digits than its factorization.

28000048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42732 (or 42726 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 28000048 is about 5291.5071577009. The cubic root of 28000048 is about 303.6590707068.

The spelling of 28000048 in words is "twenty-eight million, forty-eight", and thus it is an aban number and an uban number.