442421413041342 has 64 divisors (see below), whose sum is σ = 1011792785794560. Its totient is φ = 126338154914304.

The previous prime is 442421413041317. The next prime is 442421413041343. The reversal of 442421413041342 is 243140314124244.

It is a happy number.

It is a super-2 number, since 2×442421413041342² (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 442421413041342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442421413041343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 627094978 + ... + 627800090.

It is an arithmetic number, because the mean of its divisors is an integer number (15809262278040).

Almost surely, 2^{442421413041342} is an apocalyptic number.

442421413041342 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

442421413041342 is an abundant number, since it is smaller than the sum of its proper divisors (569371372753218).

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

442421413041342 is a wasteful number, since it uses less digits than its factorization.

442421413041342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713137.

The product of its (nonzero) digits is 294912, while the sum is 39.

Adding to 442421413041342 its reverse (243140314124244), we get a palindrome (685561727165586).

The spelling of 442421413041342 in words is "four hundred forty-two trillion, four hundred twenty-one billion, four hundred thirteen million, forty-one thousand, three hundred forty-two".