442213240542321 has 8 divisors (see below), whose sum is σ = 624301045471584. Its totient is φ = 277467131320640.

The previous prime is 442213240542301. The next prime is 442213240542373. The reversal of 442213240542321 is 123245042312244.

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 442213240542321 - 2⁷ = 442213240542193 is a prime.

It is a super-2 number, since 2×442213240542321² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 442213240542321.

It is not an unprimeable number, because it can be changed into a prime (442213240542301) 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, 4335423926835 + ... + 4335423926936.

It is an arithmetic number, because the mean of its divisors is an integer number (78037630683948).

Almost surely, 2^{442213240542321} is an apocalyptic number.

It is an amenable number.

442213240542321 is a deficient number, since it is larger than the sum of its proper divisors (182087804929263).

442213240542321 is a wasteful number, since it uses less digits than its factorization.

442213240542321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8670847853791.

The product of its (nonzero) digits is 368640, while the sum is 39.

Adding to 442213240542321 its reverse (123245042312244), we get a palindrome (565458282854565).

The spelling of 442213240542321 in words is "four hundred forty-two trillion, two hundred thirteen billion, two hundred forty million, five hundred forty-two thousand, three hundred twenty-one".