28292 has 12 divisors (see below), whose sum is σ = 54096. Its totient is φ = 12840.

The previous prime is 28289. The next prime is 28297. The reversal of 28292 is 29282.

It is a plaindrome in base 12.

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28292.

It is not an unprimeable number, because it can be changed into a prime (28297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278 + ... + 365.

It is an arithmetic number, because the mean of its divisors is an integer number (4508).

2²⁸²⁹² is an apocalyptic number.

28292 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28292 is a deficient number, since it is larger than the sum of its proper divisors (25804).

28292 is a wasteful number, since it uses less digits than its factorization.

28292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 656 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 28292 is about 168.2022592000. The cubic root of 28292 is about 30.4710825083.

Subtracting 28292 from its reverse (29282), we obtain a triangular number (990 = T₄₄).

The spelling of 28292 in words is "twenty-eight thousand, two hundred ninety-two".