440223204313 has 4 divisors (see below), whose sum is σ = 440754234340. Its totient is φ = 439692174288.

The previous prime is 440223204307. The next prime is 440223204331. The reversal of 440223204313 is 313402322044.

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 117204891904 + 323018312409 = 342352^2 + 568347^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440223204313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440223205313) 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, 265513770 + ... + 265515427.

It is an arithmetic number, because the mean of its divisors is an integer number (110188558585).

Almost surely, 2^440223204313 is an apocalyptic number.

It is an amenable number.

440223204313 is a deficient number, since it is larger than the sum of its proper divisors (531030027).

440223204313 is an equidigital number, since it uses as much as digits as its factorization.

440223204313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531030026.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 440223204313 its reverse (313402322044), we get a palindrome (753625526357).

The spelling of 440223204313 in words is "four hundred forty billion, two hundred twenty-three million, two hundred four thousand, three hundred thirteen".