28888268 has 24 divisors (see below), whose sum is σ = 53038272. Its totient is φ = 13751424.

The previous prime is 28888261. The next prime is 28888271. The reversal of 28888268 is 86288882.

It is not an unprimeable number, because it can be changed into a prime (28888261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4880 + ... + 9032.

It is an arithmetic number, because the mean of its divisors is an integer number (2209928).

Almost surely, 2^28888268 is an apocalyptic number.

It is an amenable number.

28888268 is a deficient number, since it is larger than the sum of its proper divisors (24150004).

28888268 is a wasteful number, since it uses less digits than its factorization.

28888268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4241 (or 4239 counting only the distinct ones).

The product of its digits is 786432, while the sum is 50.

The square root of 28888268 is about 5374.7807397139. The cubic root of 28888268 is about 306.8366045101.

The spelling of 28888268 in words is "twenty-eight million, eight hundred eighty-eight thousand, two hundred sixty-eight".