442256612673 has 8 divisors (see below), whose sum is σ = 590954607936. Its totient is φ = 294198179600.

The previous prime is 442256612657. The next prime is 442256612701. The reversal of 442256612673 is 376216652244.

It is a happy number.

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 442256612673 - 2⁴ = 442256612657 is a prime.

It is a super-2 number, since 2×442256612673² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442256612653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159888933 + ... + 159891698.

It is an arithmetic number, because the mean of its divisors is an integer number (73869325992).

Almost surely, 2^442256612673 is an apocalyptic number.

It is an amenable number.

442256612673 is a deficient number, since it is larger than the sum of its proper divisors (148697995263).

442256612673 is a wasteful number, since it uses less digits than its factorization.

442256612673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319781095.

The product of its digits is 2903040, while the sum is 48.

The spelling of 442256612673 in words is "four hundred forty-two billion, two hundred fifty-six million, six hundred twelve thousand, six hundred seventy-three".