28048688 has 20 divisors (see below), whose sum is σ = 55001688. Its totient is φ = 13854720.

The previous prime is 28048681. The next prime is 28048697. The reversal of 28048688 is 88684082.

It is not an unprimeable number, because it can be changed into a prime (28048681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9233 + ... + 11888.

Almost surely, 2^28048688 is an apocalyptic number.

It is an amenable number.

28048688 is a deficient number, since it is larger than the sum of its proper divisors (26953000).

28048688 is a wasteful number, since it uses less digits than its factorization.

28048688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21212 (or 21206 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 44.

The square root of 28048688 is about 5296.1012074922. The cubic root of 28048688 is about 303.8348017501.

The spelling of 28048688 in words is "twenty-eight million, forty-eight thousand, six hundred eighty-eight".