445506 has 16 divisors (see below), whose sum is σ = 913248. Its totient is φ = 144800.

The previous prime is 445499. The next prime is 445507. The reversal of 445506 is 605544.

445506 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

445506 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660 + ... + 1151.

It is an arithmetic number, because the mean of its divisors is an integer number (57078).

2⁴⁴⁵⁵⁰⁶ is an apocalyptic number.

445506 is an abundant number, since it is smaller than the sum of its proper divisors (467742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445506 is a wasteful number, since it uses less digits than its factorization.

445506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 445506 is about 667.4623584892. The cubic root of 445506 is about 76.3749934150.

The spelling of 445506 in words is "four hundred forty-five thousand, five hundred six".