28086282 has 48 divisors (see below), whose sum is σ = 70267392. Its totient is φ = 7941600.

The previous prime is 28086281. The next prime is 28086283. The reversal of 28086282 is 28268082.

28086282 is a `hidden beast` number, since 28 + 0 + 8 + 628 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (28086281) and next prime (28086283).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28086281) 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, 11623 + ... + 13829.

It is an arithmetic number, because the mean of its divisors is an integer number (1463904).

Almost surely, 2^28086282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28086282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35133696).

28086282 is an abundant number, since it is smaller than the sum of its proper divisors (42181110).

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

28086282 is a wasteful number, since it uses less digits than its factorization.

28086282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323 (or 2320 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 28086282 is about 5299.6492336758. The cubic root of 28086282 is about 303.9704856503.

The spelling of 28086282 in words is "twenty-eight million, eighty-six thousand, two hundred eighty-two".