442344520023 has 16 divisors (see below), whose sum is σ = 689724347136. Its totient is φ = 246889964160.

The previous prime is 442344520021. The next prime is 442344520031. The reversal of 442344520023 is 320025443244.

It is not a de Polignac number, because 442344520023 - 2¹ = 442344520021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442344520021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244929618 + ... + 244931423.

It is an arithmetic number, because the mean of its divisors is an integer number (43107771696).

Almost surely, 2^442344520023 is an apocalyptic number.

442344520023 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

442344520023 is a deficient number, since it is larger than the sum of its proper divisors (247379827113).

442344520023 is a wasteful number, since it uses less digits than its factorization.

442344520023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489861094.

The product of its (nonzero) digits is 92160, while the sum is 33.

Adding to 442344520023 its reverse (320025443244), we get a palindrome (762369963267).

The spelling of 442344520023 in words is "four hundred forty-two billion, three hundred forty-four million, five hundred twenty thousand, twenty-three".