442390515841 has 4 divisors (see below), whose sum is σ = 443416944384. Its totient is φ = 441364087300.

The previous prime is 442390515839. The next prime is 442390515877. The reversal of 442390515841 is 148515093244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442390515841 - 2¹ = 442390515839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442390515791 and 442390515800.

It is not an unprimeable number, because it can be changed into a prime (442390515641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513213625 + ... + 513214486.

It is an arithmetic number, because the mean of its divisors is an integer number (110854236096).

Almost surely, 2^442390515841 is an apocalyptic number.

It is an amenable number.

442390515841 is a deficient number, since it is larger than the sum of its proper divisors (1026428543).

442390515841 is a wasteful number, since it uses less digits than its factorization.

442390515841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026428542.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 442390515841 in words is "four hundred forty-two billion, three hundred ninety million, five hundred fifteen thousand, eight hundred forty-one".