442341422133209 has 4 divisors (see below), whose sum is σ = 442344679593600. Its totient is φ = 442338164672820.

The previous prime is 442341422133173. The next prime is 442341422133227. The reversal of 442341422133209 is 902331224143244.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-442341422133209 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 442341422133209.

It is not an unprimeable number, because it can be changed into a prime (442341422133109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628526497 + ... + 1628798094.

It is an arithmetic number, because the mean of its divisors is an integer number (110586169898400).

Almost surely, 2^{442341422133209} is an apocalyptic number.

It is an amenable number.

442341422133209 is a deficient number, since it is larger than the sum of its proper divisors (3257460391).

442341422133209 is a wasteful number, since it uses less digits than its factorization.

442341422133209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3257460390.

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 442341422133209 in words is "four hundred forty-two trillion, three hundred forty-one billion, four hundred twenty-two million, one hundred thirty-three thousand, two hundred nine".