442043340344233 has 4 divisors (see below), whose sum is σ = 442045843980228. Its totient is φ = 442040836708240.

The previous prime is 442043340344161. The next prime is 442043340344257. The reversal of 442043340344233 is 332443043340244.

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 434478464157609 + 7564876186624 = 20844147^2 + 2750432^2 .

It is a cyclic number.

It is not a de Polignac number, because 442043340344233 - 2¹³ = 442043340336041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442043340344233.

It is not an unprimeable number, because it can be changed into a prime (442043340354233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251553138 + ... + 1251906283.

It is an arithmetic number, because the mean of its divisors is an integer number (110511460995057).

Almost surely, 2^{442043340344233} is an apocalyptic number.

It is an amenable number.

442043340344233 is a deficient number, since it is larger than the sum of its proper divisors (2503635995).

442043340344233 is a wasteful number, since it uses less digits than its factorization.

442043340344233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503635994.

The product of its (nonzero) digits is 3981312, while the sum is 43.

Adding to 442043340344233 its reverse (332443043340244), we get a palindrome (774486383684477).

The spelling of 442043340344233 in words is "four hundred forty-two trillion, forty-three billion, three hundred forty million, three hundred forty-four thousand, two hundred thirty-three".