440240383837 has 2 divisors, whose sum is σ = 440240383838. Its totient is φ = 440240383836.

The previous prime is 440240383829. The next prime is 440240383841. The reversal of 440240383837 is 738383042044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312066359641 + 128174024196 = 558629^2 + 358014^2 .

It is a cyclic number.

It is not a de Polignac number, because 440240383837 - 2³ = 440240383829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440240383867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220120191918 + 220120191919.

It is an arithmetic number, because the mean of its divisors is an integer number (220120191919).

Almost surely, 2^440240383837 is an apocalyptic number.

It is an amenable number.

440240383837 is a deficient number, since it is larger than the sum of its proper divisors (1).

440240383837 is an equidigital number, since it uses as much as digits as its factorization.

440240383837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 46.

The spelling of 440240383837 in words is "four hundred forty billion, two hundred forty million, three hundred eighty-three thousand, eight hundred thirty-seven".