442439855207 has 8 divisors (see below), whose sum is σ = 506155794432. Its totient is φ = 378851477400.

The previous prime is 442439855203. The next prime is 442439855261. The reversal of 442439855207 is 702558934244.

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 442439855207 - 2² = 442439855203 is a prime.

It is a super-2 number, since 2×442439855207² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442439855203) 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, 31882919 + ... + 31896792.

It is an arithmetic number, because the mean of its divisors is an integer number (63269474304).

Almost surely, 2^442439855207 is an apocalyptic number.

442439855207 is a deficient number, since it is larger than the sum of its proper divisors (63715939225).

442439855207 is an equidigital number, since it uses as much as digits as its factorization.

442439855207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63780709.

The product of its (nonzero) digits is 9676800, while the sum is 53.

The spelling of 442439855207 in words is "four hundred forty-two billion, four hundred thirty-nine million, eight hundred fifty-five thousand, two hundred seven".