442057085 has 8 divisors (see below), whose sum is σ = 533246976. Its totient is φ = 351793360.

The previous prime is 442057081. The next prime is 442057123. The reversal of 442057085 is 580750244.

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

It is not a de Polignac number, because 442057085 - 2² = 442057081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442057081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230489 + ... + 232398.

It is an arithmetic number, because the mean of its divisors is an integer number (66655872).

Almost surely, 2^442057085 is an apocalyptic number.

It is an amenable number.

442057085 is a deficient number, since it is larger than the sum of its proper divisors (91189891).

442057085 is a wasteful number, since it uses less digits than its factorization.

442057085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463083.

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 442057085 is about 21025.1536260737. The cubic root of 442057085 is about 761.7739522567.

The spelling of 442057085 in words is "four hundred forty-two million, fifty-seven thousand, eighty-five".