28016502 has 16 divisors (see below), whose sum is σ = 56206272. Its totient is φ = 9309960.

The previous prime is 28016477. The next prime is 28016531. The reversal of 28016502 is 20561082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5068 + ... + 9039.

It is an arithmetic number, because the mean of its divisors is an integer number (3512892).

Almost surely, 2^28016502 is an apocalyptic number.

28016502 is an abundant number, since it is smaller than the sum of its proper divisors (28189770).

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

28016502 is a wasteful number, since it uses less digits than its factorization.

28016502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14443.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 28016502 is about 5293.0616848852. The cubic root of 28016502 is about 303.7185399855.

Adding to 28016502 its reverse (20561082), we get a palindrome (48577584).

The spelling of 28016502 in words is "twenty-eight million, sixteen thousand, five hundred two".