28028048 has 10 divisors (see below), whose sum is σ = 54304374. Its totient is φ = 14014016.

The previous prime is 28028029. The next prime is 28028057. The reversal of 28028048 is 84082082.

It can be written as a sum of positive squares in only one way, i.e., 16386304 + 11641744 = 4048^2 + 3412^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 875861 + ... + 875892.

Almost surely, 2^28028048 is an apocalyptic number.

It is an amenable number.

28028048 is a deficient number, since it is larger than the sum of its proper divisors (26276326).

28028048 is a wasteful number, since it uses less digits than its factorization.

28028048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751761 (or 1751755 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 28028048 is about 5294.1522456386. The cubic root of 28028048 is about 303.7602565025.

The spelling of 28028048 in words is "twenty-eight million, twenty-eight thousand, forty-eight".