445504 has 14 divisors (see below), whose sum is σ = 884174. Its totient is φ = 222720.

The previous prime is 445499. The next prime is 445507. The reversal of 445504 is 405544.

It can be written as a sum of positive squares in only one way, i.e., 419904 + 25600 = 648^2 + 160^2 .

It is not an unprimeable number, because it can be changed into a prime (445507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3417 + ... + 3544.

2⁴⁴⁵⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

445504 is a deficient number, since it is larger than the sum of its proper divisors (438670).

445504 is an equidigital number, since it uses as much as digits as its factorization.

445504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6973 (or 6963 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 445504 is about 667.4608602757. The cubic root of 445504 is about 76.3748791253.

It can be divided in two parts, 445 and 504, that added together give a palindrome (949).

The spelling of 445504 in words is "four hundred forty-five thousand, five hundred four".