28303016 has 16 divisors (see below), whose sum is σ = 60649440. Its totient is φ = 12129840.

The previous prime is 28303013. The next prime is 28303019. The reversal of 28303016 is 61030382.

It is an interprime number because it is at equal distance from previous prime (28303013) and next prime (28303019).

It is a junction number, because it is equal to n+sod(n) for n = 28302982 and 28303000.

It is not an unprimeable number, because it can be changed into a prime (28303013) 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, 252650 + ... + 252761.

It is an arithmetic number, because the mean of its divisors is an integer number (3790590).

Almost surely, 2^28303016 is an apocalyptic number.

It is an amenable number.

28303016 is an abundant number, since it is smaller than the sum of its proper divisors (32346424).

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

28303016 is a wasteful number, since it uses less digits than its factorization.

28303016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505424 (or 505420 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 28303016 is about 5320.0578944218. The cubic root of 28303016 is about 304.7503681676.

Adding to 28303016 its reverse (61030382), we get a palindrome (89333398).

The spelling of 28303016 in words is "twenty-eight million, three hundred three thousand, sixteen".