442441306 has 8 divisors (see below), whose sum is σ = 667101204. Its totient is φ = 220074240.

The previous prime is 442441273. The next prime is 442441327. The reversal of 442441306 is 603144244.

It can be written as a sum of positive squares in 2 ways, for example, as 434347281 + 8094025 = 20841^2 + 2845^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572725 + ... + 573496.

Almost surely, 2^442441306 is an apocalyptic number.

442441306 is a deficient number, since it is larger than the sum of its proper divisors (224659898).

442441306 is a wasteful number, since it uses less digits than its factorization.

442441306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146416.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 442441306 is about 21034.2888161212. The cubic root of 442441306 is about 761.9945910249.

The spelling of 442441306 in words is "four hundred forty-two million, four hundred forty-one thousand, three hundred six".