442122204658 has 16 divisors (see below), whose sum is σ = 664000758144. Its totient is φ = 220788700240.

The previous prime is 442122204613. The next prime is 442122204659. The reversal of 442122204658 is 856402221244.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 442122204658.

It is not an unprimeable number, because it can be changed into a prime (442122204659) 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, 13509591 + ... + 13542277.

It is an arithmetic number, because the mean of its divisors is an integer number (41500047384).

Almost surely, 2^442122204658 is an apocalyptic number.

442122204658 is a deficient number, since it is larger than the sum of its proper divisors (221878553486).

442122204658 is a wasteful number, since it uses less digits than its factorization.

442122204658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40817.

The product of its (nonzero) digits is 245760, while the sum is 40.

The spelling of 442122204658 in words is "four hundred forty-two billion, one hundred twenty-two million, two hundred four thousand, six hundred fifty-eight".