Multipling 24642 by its sum of digits (18), we get a square (443556 = 6662).
24642 divided by its sum of digits (18) gives a square (1369 = 372).
24642 is a `hidden beast` number, since 24 + 642 = 666.
24642 is nontrivially palindromic in base 10.
It is a tau number, because it is divible by the number of its divisors (18).
It is an ABA number since it can be written as A⋅BA, here for A=2, B=111.
It is an unprimeable number.
24642 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
224642 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 24642
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
24642 is a wasteful number, since it uses less digits than its factorization.
24642 is an evil number, because the sum of its binary digits is even.
The square root of 24642 is about 156.9777054234. The cubic root of 24642 is about 29.0999326884.
The spelling of 24642 in words is "twenty-four thousand, six hundred forty-two".