442430323745 has 4 divisors (see below), whose sum is σ = 530916388500. Its totient is φ = 353944258992.

The previous prime is 442430323733. The next prime is 442430323763. The reversal of 442430323745 is 547323034244.

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 70735253521 + 371695070224 = 265961^2 + 609668^2 .

It is a cyclic number.

It is not a de Polignac number, because 442430323745 - 2⁶ = 442430323681 is a prime.

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, 44243032370 + ... + 44243032379.

It is an arithmetic number, because the mean of its divisors is an integer number (132729097125).

Almost surely, 2^442430323745 is an apocalyptic number.

It is an amenable number.

442430323745 is a deficient number, since it is larger than the sum of its proper divisors (88486064755).

442430323745 is an equidigital number, since it uses as much as digits as its factorization.

442430323745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88486064754.

The product of its (nonzero) digits is 967680, while the sum is 41.

Adding to 442430323745 its reverse (547323034244), we get a palindrome (989753357989).

The spelling of 442430323745 in words is "four hundred forty-two billion, four hundred thirty million, three hundred twenty-three thousand, seven hundred forty-five".