18460 has 24 divisors (see below), whose sum is σ = 42336. Its totient is φ = 6720.
The previous prime is 18457. The next prime is 18461. The reversal of 18460 is 6481.
18460 = T19 + T20 + ... + T48.
It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.
It is a nialpdrome in base 13.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18461) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225 + ... + 295.
It is an arithmetic number, because the mean of its divisors is an integer number (1764).
218460 is an apocalyptic number.
18460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21168).
18460 is an abundant number, since it is smaller than the sum of its proper divisors (23876).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18460 is a wasteful number, since it uses less digits than its factorization.
18460 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 93 (or 91 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 19.
The square root of 18460 is about 135.8675825942. The cubic root of 18460 is about 26.4287870865.
The spelling of 18460 in words is "eighteen thousand, four hundred sixty".
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