442323111422352 has 160 divisors (see below), whose sum is σ = 1214553752156160. Its totient is φ = 138232987125760.

The previous prime is 442323111422317. The next prime is 442323111422363. The reversal of 442323111422352 is 253224111323244.

It is a self number, because there is not a number n which added to its sum of digits gives 442323111422352.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 395077783 + ... + 396195785.

It is an arithmetic number, because the mean of its divisors is an integer number (7590960950976).

Almost surely, 2^{442323111422352} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442323111422352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607276876078080).

442323111422352 is an abundant number, since it is smaller than the sum of its proper divisors (772230640733808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442323111422352 is a wasteful number, since it uses less digits than its factorization.

442323111422352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119901 (or 1119895 counting only the distinct ones).

The product of its digits is 276480, while the sum is 39.

Adding to 442323111422352 its reverse (253224111323244), we get a palindrome (695547222745596).

The spelling of 442323111422352 in words is "four hundred forty-two trillion, three hundred twenty-three billion, one hundred eleven million, four hundred twenty-two thousand, three hundred fifty-two".