28303008 has 96 divisors (see below), whose sum is σ = 79833600. Its totient is φ = 8752896.

The previous prime is 28303003. The next prime is 28303013. The reversal of 28303008 is 80030382.

It is an interprime number because it is at equal distance from previous prime (28303003) and next prime (28303013).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (28303003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107485 + ... + 107747.

It is an arithmetic number, because the mean of its divisors is an integer number (831600).

Almost surely, 2^28303008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28303008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39916800).

28303008 is an abundant number, since it is smaller than the sum of its proper divisors (51530592).

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

28303008 is a wasteful number, since it uses less digits than its factorization.

28303008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 28303008 is about 5320.0571425503. The cubic root of 28303008 is about 304.7503394545.

The spelling of 28303008 in words is "twenty-eight million, three hundred three thousand, eight".