18926 has 4 divisors (see below), whose sum is σ = 28392. Its totient is φ = 9462.
The previous prime is 18919. The next prime is 18947. The reversal of 18926 is 62981.
It is a semiprime because it is the product of two primes.
It is a Curzon number.
It is a plaindrome in base 16.
It is a junction number, because it is equal to n+sod(n) for n = 18895 and 18904.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 18926.
It is an unprimeable number.
18926 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 as a sum of consecutive naturals, namely, 4730 + ... + 4733.
It is an arithmetic number, because the mean of its divisors is an integer number (7098).
218926 is an apocalyptic number.
18926 is a deficient number, since it is larger than the sum of its proper divisors (9466).
18926 is an equidigital number, since it uses as much as digits as its factorization.
18926 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9465.
The product of its digits is 864, while the sum is 26.
The square root of 18926 is about 137.5717994358. The cubic root of 18926 is about 26.6493290079.
The spelling of 18926 in words is "eighteen thousand, nine hundred twenty-six".
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