It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-445559 is a prime.
It is a Duffinian number.
It is a plaindrome in base 10.
It is a congruent number.
2445559 is an apocalyptic number.
445559 is a wasteful number, since it uses less digits than its factorization.
445559 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4056.
The square root of 445559 is about 667.5020599219. The cubic root of 445559 is about 76.3780219669.
The spelling of 445559 in words is "four hundred forty-five thousand, five hundred fifty-nine".