28492 has 12 divisors (see below), whose sum is σ = 52920. Its totient is φ = 13376.

The previous prime is 28477. The next prime is 28493. The reversal of 28492 is 29482.

It is an Ulam number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (28493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142 + ... + 277.

It is an arithmetic number, because the mean of its divisors is an integer number (4410).

2²⁸⁴⁹² is an apocalyptic number.

It is an amenable number.

28492 is a deficient number, since it is larger than the sum of its proper divisors (24428).

28492 is a wasteful number, since it uses less digits than its factorization.

28492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 438 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 28492 is about 168.7957345433. The cubic root of 28492 is about 30.5427153886.

Subtracting 28492 from its reverse (29482), we obtain a triangular number (990 = T₄₄).

The spelling of 28492 in words is "twenty-eight thousand, four hundred ninety-two".