440333231020393 has 2 divisors, whose sum is σ = 440333231020394. Its totient is φ = 440333231020392.

The previous prime is 440333231020369. The next prime is 440333231020451. The reversal of 440333231020393 is 393020132333044.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 295239955772304 + 145093275248089 = 17182548^2 + 12045467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440333231020393 is a prime.

It is not a weakly prime, because it can be changed into another prime (440333231020093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220166615510196 + 220166615510197.

It is an arithmetic number, because the mean of its divisors is an integer number (220166615510197).

Almost surely, 2^{440333231020393} is an apocalyptic number.

It is an amenable number.

440333231020393 is a deficient number, since it is larger than the sum of its proper divisors (1).

440333231020393 is an equidigital number, since it uses as much as digits as its factorization.

440333231020393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 40.

The spelling of 440333231020393 in words is "four hundred forty trillion, three hundred thirty-three billion, two hundred thirty-one million, twenty thousand, three hundred ninety-three".