442570885 has 8 divisors (see below), whose sum is σ = 549398520. Its totient is φ = 341847744.

The previous prime is 442570873. The next prime is 442570889. The reversal of 442570885 is 588075244.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42810849 + 399760036 = 6543^2 + 19994^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 442570885 - 2⁷ = 442570757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442570889) by changing a digit.

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, 1525962 + ... + 1526251.

It is an arithmetic number, because the mean of its divisors is an integer number (68674815).

Almost surely, 2^442570885 is an apocalyptic number.

It is an amenable number.

442570885 is a deficient number, since it is larger than the sum of its proper divisors (106827635).

442570885 is a wasteful number, since it uses less digits than its factorization.

442570885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052247.

The product of its (nonzero) digits is 358400, while the sum is 43.

The square root of 442570885 is about 21037.3687755860. The cubic root of 442570885 is about 762.0689729132.

The spelling of 442570885 in words is "four hundred forty-two million, five hundred seventy thousand, eight hundred eighty-five".