445385 has 8 divisors (see below), whose sum is σ = 538056. Its totient is φ = 353920.

The previous prime is 445363. The next prime is 445427. The reversal of 445385 is 583544.

It can be written as a sum of positive squares in 4 ways, for example, as 8464 + 436921 = 92^2 + 661^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 445385 - 2⁶ = 445321 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1247 + ... + 1563.

It is an arithmetic number, because the mean of its divisors is an integer number (67257).

2⁴⁴⁵³⁸⁵ is an apocalyptic number.

It is an amenable number.

445385 is a deficient number, since it is larger than the sum of its proper divisors (92671).

445385 is a wasteful number, since it uses less digits than its factorization.

445385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603.

The product of its digits is 9600, while the sum is 29.

The square root of 445385 is about 667.3717105182. The cubic root of 445385 is about 76.3680782735.

The spelling of 445385 in words is "four hundred forty-five thousand, three hundred eighty-five".