18046 has 8 divisors (see below), whose sum is σ = 30960. Its totient is φ = 7728.

The previous prime is 18043. The next prime is 18047. The reversal of 18046 is 64081.

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

It is an Ulam number.

It is a plaindrome in base 16.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18041) 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, 631 + ... + 658.

It is an arithmetic number, because the mean of its divisors is an integer number (3870).

2¹⁸⁰⁴⁶ is an apocalyptic number.

18046 is a deficient number, since it is larger than the sum of its proper divisors (12914).

18046 is a wasteful number, since it uses less digits than its factorization.

18046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 18046 is about 134.3354011421. The cubic root of 18046 is about 26.2297197857.

The spelling of 18046 in words is "eighteen thousand, forty-six".