• 446 can be written using four 4's:
It is a happy number.
446 is nontrivially palindromic in base 8 and base 9.
446 is an esthetic number in base 8 and base 9, because in such bases its adjacent digits differ by 1.
It is a semiprime because it is the product of two primes.
446 is an undulating number in base 8 and base 9.
It is a plaindrome in base 10, base 14 and base 16.
It is a self number, because there is not a number n which added to its sum of digits gives 446.
It is a congruent number.
446 is a wasteful number, since it uses less digits than its factorization.
446 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 225.
The square root of 446 is about 21.1187120819. The cubic root of 446 is about 7.6403212496.
The spelling of 446 in words is "four hundred forty-six", and thus it is an aban number.