440113313 has 2 divisors, whose sum is σ = 440113314. Its totient is φ = 440113312.

The previous prime is 440113307. The next prime is 440113327. The reversal of 440113313 is 313311044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307932304 + 132181009 = 17548^2 + 11497^2 .

It is a cyclic number.

It is not a de Polignac number, because 440113313 - 2¹⁸ = 439851169 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (440113813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220056656 + 220056657.

It is an arithmetic number, because the mean of its divisors is an integer number (220056657).

Almost surely, 2^440113313 is an apocalyptic number.

It is an amenable number.

440113313 is a deficient number, since it is larger than the sum of its proper divisors (1).

440113313 is an equidigital number, since it uses as much as digits as its factorization.

440113313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 440113313 is about 20978.8777821884. The cubic root of 440113313 is about 760.6557780562.

Adding to 440113313 its reverse (313311044), we get a palindrome (753424357).

The spelling of 440113313 in words is "four hundred forty million, one hundred thirteen thousand, three hundred thirteen".