28146 has 8 divisors (see below), whose sum is σ = 56304. Its totient is φ = 9380.

The previous prime is 28123. The next prime is 28151. The reversal of 28146 is 64182.

28146 is nontrivially palindromic in base 5.

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

28146 is an admirable number.

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 28146.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2340 + ... + 2351.

It is an arithmetic number, because the mean of its divisors is an integer number (7038).

2²⁸¹⁴⁶ is an apocalyptic number.

28146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28152).

28146 is a wasteful number, since it uses less digits than its factorization.

28146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4696.

The product of its digits is 384, while the sum is 21.

The square root of 28146 is about 167.7676965330. The cubic root of 28146 is about 30.4185770573.

The spelling of 28146 in words is "twenty-eight thousand, one hundred forty-six".