28046 has 8 divisors (see below), whose sum is σ = 43320. Its totient is φ = 13608.

The previous prime is 28031. The next prime is 28051. The reversal of 28046 is 64082.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

28046 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116 + ... + 263.

It is an arithmetic number, because the mean of its divisors is an integer number (5415).

2²⁸⁰⁴⁶ is an apocalyptic number.

28046 is a deficient number, since it is larger than the sum of its proper divisors (15274).

28046 is a wasteful number, since it uses less digits than its factorization.

28046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 28046 is about 167.4694001900. The cubic root of 28046 is about 30.3825095603.

It can be divided in two parts, 280 and 46, that multiplied together give a triangular number (12880 = T₁₆₀).

The spelling of 28046 in words is "twenty-eight thousand, forty-six".