444243340133 has 4 divisors (see below), whose sum is σ = 444311892108. Its totient is φ = 444174788160.

The previous prime is 444243340129. The next prime is 444243340147. The reversal of 444243340133 is 331043342444.

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 430832078884 + 13411261249 = 656378^2 + 115807^2 .

It is a cyclic number.

It is not a de Polignac number, because 444243340133 - 2² = 444243340129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444243340093 and 444243340102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444243340183) 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, 34266266 + ... + 34279227.

It is an arithmetic number, because the mean of its divisors is an integer number (111077973027).

Almost surely, 2^444243340133 is an apocalyptic number.

It is an amenable number.

444243340133 is a deficient number, since it is larger than the sum of its proper divisors (68551975).

444243340133 is an equidigital number, since it uses as much as digits as its factorization.

444243340133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68551974.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 444243340133 its reverse (331043342444), we get a palindrome (775286682577).

The spelling of 444243340133 in words is "four hundred forty-four billion, two hundred forty-three million, three hundred forty thousand, one hundred thirty-three".