It is a happy number.
73224 is nontrivially palindromic in base 7.
It is a congruent number.
It is an unprimeable number.
73224 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
273224 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 73224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103455).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
73224 is a wasteful number, since it uses less digits than its factorization.
73224 is an evil number, because the sum of its binary digits is even.
The square root of 73224 is about 270.5993348107. The cubic root of 73224 is about 41.8360958936.
The spelling of 73224 in words is "seventy-three thousand, two hundred twenty-four", and thus it is an iban number.