444305 has 4 divisors (see below), whose sum is σ = 533172. Its totient is φ = 355440.

The previous prime is 444293. The next prime is 444307. The reversal of 444305 is 503444.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 261121 + 183184 = 511^2 + 428^2 .

It is not a de Polignac number, because 444305 - 2⁴ = 444289 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44426 + ... + 44435.

It is an arithmetic number, because the mean of its divisors is an integer number (133293).

2⁴⁴⁴³⁰⁵ is an apocalyptic number.

It is an amenable number.

444305 is a deficient number, since it is larger than the sum of its proper divisors (88867).

444305 is an equidigital number, since it uses as much as digits as its factorization.

444305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88866.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 444305 is about 666.5620751288. The cubic root of 444305 is about 76.3063008000.

Adding to 444305 its reverse (503444), we get a palindrome (947749).

It can be divided in two parts, 44 and 4305, that multiplied together give a triangular number (189420 = T₆₁₅).

The spelling of 444305 in words is "four hundred forty-four thousand, three hundred five".