28516302 has 48 divisors (see below), whose sum is σ = 65520000. Its totient is φ = 8938512.

The previous prime is 28516291. The next prime is 28516303. The reversal of 28516302 is 20361582.

28516302 is a `hidden beast` number, since 28 + 5 + 1 + 630 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28516303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67849 + ... + 68267.

It is an arithmetic number, because the mean of its divisors is an integer number (1365000).

Almost surely, 2^28516302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28516302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32760000).

28516302 is an abundant number, since it is smaller than the sum of its proper divisors (37003698).

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

28516302 is a wasteful number, since it uses less digits than its factorization.

28516302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 28516302 is about 5340.0657299325. The cubic root of 28516302 is about 305.5139663408.

Adding to 28516302 its reverse (20361582), we get a palindrome (48877884).

The spelling of 28516302 in words is "twenty-eight million, five hundred sixteen thousand, three hundred two".