442421310245 has 4 divisors (see below), whose sum is σ = 530905572300. Its totient is φ = 353937048192.

The previous prime is 442421310209. The next prime is 442421310251. The reversal of 442421310245 is 542013124244.

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

It can be written as a sum of positive squares in 2 ways, for example, as 109979120161 + 332442190084 = 331631^2 + 576578^2 .

It is a cyclic number.

It is not a de Polignac number, because 442421310245 - 2¹⁰ = 442421309221 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44242131020 + ... + 44242131029.

It is an arithmetic number, because the mean of its divisors is an integer number (132726393075).

Almost surely, 2^442421310245 is an apocalyptic number.

It is an amenable number.

442421310245 is a deficient number, since it is larger than the sum of its proper divisors (88484262055).

442421310245 is an equidigital number, since it uses as much as digits as its factorization.

442421310245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88484262054.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 442421310245 its reverse (542013124244), we get a palindrome (984434434489).

The spelling of 442421310245 in words is "four hundred forty-two billion, four hundred twenty-one million, three hundred ten thousand, two hundred forty-five".