442421310243 has 16 divisors (see below), whose sum is σ = 671501120256. Its totient is φ = 256476121440.

The previous prime is 442421310209. The next prime is 442421310251. The reversal of 442421310243 is 342013124244.

It is not a de Polignac number, because 442421310243 - 2⁸ = 442421309987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 442421310243.

It is not an unprimeable number, because it can be changed into a prime (442421310203) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 291449380 + ... + 291450897.

It is an arithmetic number, because the mean of its divisors is an integer number (41968820016).

Almost surely, 2^442421310243 is an apocalyptic number.

442421310243 is a deficient number, since it is larger than the sum of its proper divisors (229079810013).

442421310243 is a wasteful number, since it uses less digits than its factorization.

442421310243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582900314.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 442421310243 its reverse (342013124244), we get a palindrome (784434434487).

The spelling of 442421310243 in words is "four hundred forty-two billion, four hundred twenty-one million, three hundred ten thousand, two hundred forty-three".