28048968 has 24 divisors (see below), whose sum is σ = 75966150. Its totient is φ = 9349632.

The previous prime is 28048967. The next prime is 28048981. The reversal of 28048968 is 86984082.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26193924 + 1855044 = 5118^2 + 1362^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28048967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194713 + ... + 194856.

Almost surely, 2^28048968 is an apocalyptic number.

It is an amenable number.

28048968 is an abundant number, since it is smaller than the sum of its proper divisors (47917182).

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

28048968 is a wasteful number, since it uses less digits than its factorization.

28048968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389581 (or 389574 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 28048968 is about 5296.1276419663. The cubic root of 28048968 is about 303.8358127714.

The spelling of 28048968 in words is "twenty-eight million, forty-eight thousand, nine hundred sixty-eight".