442215440311 has 4 divisors (see below), whose sum is σ = 442225168192. Its totient is φ = 442205712432.

The previous prime is 442215440297. The next prime is 442215440333. The reversal of 442215440311 is 113044512244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442215440311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442215440411) 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 3 ways as a sum of consecutive naturals, for example, 4795431 + ... + 4886776.

It is an arithmetic number, because the mean of its divisors is an integer number (110556292048).

Almost surely, 2^442215440311 is an apocalyptic number.

442215440311 is a deficient number, since it is larger than the sum of its proper divisors (9727881).

442215440311 is an equidigital number, since it uses as much as digits as its factorization.

442215440311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9727880.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 442215440311 its reverse (113044512244), we get a palindrome (555259952555).

The spelling of 442215440311 in words is "four hundred forty-two billion, two hundred fifteen million, four hundred forty thousand, three hundred eleven".