442143340133 has 8 divisors (see below), whose sum is σ = 487113816096. Its totient is φ = 397968802000.

The previous prime is 442143340081. The next prime is 442143340153. The reversal of 442143340133 is 331043341244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-442143340133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442143340133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442143340153) 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, 198983291 + ... + 198985512.

It is an arithmetic number, because the mean of its divisors is an integer number (60889227012).

Almost surely, 2^442143340133 is an apocalyptic number.

It is an amenable number.

442143340133 is a deficient number, since it is larger than the sum of its proper divisors (44970475963).

442143340133 is a wasteful number, since it uses less digits than its factorization.

442143340133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397968915.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 442143340133 its reverse (331043341244), we get a palindrome (773186681377).

The spelling of 442143340133 in words is "four hundred forty-two billion, one hundred forty-three million, three hundred forty thousand, one hundred thirty-three".