440445452443 has 4 divisors (see below), whose sum is σ = 440448450120. Its totient is φ = 440442454768.

The previous prime is 440445452411. The next prime is 440445452453. The reversal of 440445452443 is 344254544044.

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

It is a cyclic number.

It is not a de Polignac number, because 440445452443 - 2⁵ = 440445452411 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 440445452443.

It is not an unprimeable number, because it can be changed into a prime (440445452453) 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, 1266433 + ... + 1576306.

It is an arithmetic number, because the mean of its divisors is an integer number (110112112530).

Almost surely, 2^440445452443 is an apocalyptic number.

440445452443 is a deficient number, since it is larger than the sum of its proper divisors (2997677).

440445452443 is a wasteful number, since it uses less digits than its factorization.

440445452443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997676.

The product of its (nonzero) digits is 2457600, while the sum is 43.

Adding to 440445452443 its reverse (344254544044), we get a palindrome (784699996487).

The spelling of 440445452443 in words is "four hundred forty billion, four hundred forty-five million, four hundred fifty-two thousand, four hundred forty-three".