442442420201 has 16 divisors (see below), whose sum is σ = 446022245760. Its totient is φ = 438875832960.

The previous prime is 442442420197. The next prime is 442442420209. The reversal of 442442420201 is 102024244244.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 442442420201 - 2² = 442442420197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442442420209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207620906 + ... + 207623036.

It is an arithmetic number, because the mean of its divisors is an integer number (27876390360).

Almost surely, 2^442442420201 is an apocalyptic number.

It is an amenable number.

442442420201 is a deficient number, since it is larger than the sum of its proper divisors (3579825559).

442442420201 is a wasteful number, since it uses less digits than its factorization.

442442420201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496.

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 442442420201 its reverse (102024244244), we get a palindrome (544466664445).

The spelling of 442442420201 in words is "four hundred forty-two billion, four hundred forty-two million, four hundred twenty thousand, two hundred one".