445605 has 16 divisors (see below), whose sum is σ = 726144. Its totient is φ = 233280.

The previous prime is 445597. The next prime is 445619. The reversal of 445605 is 506544.

It is not a de Polignac number, because 445605 - 2³ = 445597 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 445605.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672 + ... + 1158.

It is an arithmetic number, because the mean of its divisors is an integer number (45384).

2⁴⁴⁵⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

445605 is a deficient number, since it is larger than the sum of its proper divisors (280539).

445605 is a wasteful number, since it uses less digits than its factorization.

445605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556.

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

The square root of 445605 is about 667.5365158551. The cubic root of 445605 is about 76.3806503267.

The spelling of 445605 in words is "four hundred forty-five thousand, six hundred five".