442140422143 has 16 divisors (see below), whose sum is σ = 520229162560. Its totient is φ = 367833229056.

The previous prime is 442140422131. The next prime is 442140422147. The reversal of 442140422143 is 341224041244.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 442140422143 - 2⁵ = 442140422111 is a prime.

It is a super-3 number, since 3×442140422143³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442140422147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1980996 + ... + 2192857.

It is an arithmetic number, because the mean of its divisors is an integer number (32514322660).

Almost surely, 2^442140422143 is an apocalyptic number.

442140422143 is a deficient number, since it is larger than the sum of its proper divisors (78088740417).

442140422143 is a wasteful number, since it uses less digits than its factorization.

442140422143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4174306.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 442140422143 its reverse (341224041244), we get a palindrome (783364463387).

The spelling of 442140422143 in words is "four hundred forty-two billion, one hundred forty million, four hundred twenty-two thousand, one hundred forty-three".