28908248 has 32 divisors (see below), whose sum is σ = 56179200. Its totient is φ = 13934592.

The previous prime is 28908241. The next prime is 28908251. The reversal of 28908248 is 84280982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28908241) 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, 37208 + ... + 37976.

It is an arithmetic number, because the mean of its divisors is an integer number (1755600).

Almost surely, 2^28908248 is an apocalyptic number.

It is an amenable number.

28908248 is a deficient number, since it is larger than the sum of its proper divisors (27270952).

28908248 is a wasteful number, since it uses less digits than its factorization.

28908248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 28908248 is about 5376.6390989167. The cubic root of 28908248 is about 306.9073273670.

The spelling of 28908248 in words is "twenty-eight million, nine hundred eight thousand, two hundred forty-eight".