28168282 has 8 divisors (see below), whose sum is σ = 42409152. Its totient is φ = 14031900.

The previous prime is 28168277. The next prime is 28168313. The reversal of 28168282 is 28286182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28168282² = 1586904221663048, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25444 + ... + 26527.

It is an arithmetic number, because the mean of its divisors is an integer number (5301144).

Almost surely, 2^28168282 is an apocalyptic number.

28168282 is a deficient number, since it is larger than the sum of its proper divisors (14240870).

28168282 is a wasteful number, since it uses less digits than its factorization.

28168282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52244.

The product of its digits is 24576, while the sum is 37.

The square root of 28168282 is about 5307.3799562496. The cubic root of 28168282 is about 304.2660197445.

The spelling of 28168282 in words is "twenty-eight million, one hundred sixty-eight thousand, two hundred eighty-two".