443377440349 has 2 divisors, whose sum is σ = 443377440350. Its totient is φ = 443377440348.

The previous prime is 443377440323. The next prime is 443377440371. The reversal of 443377440349 is 943044773344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 325071022500 + 118306417849 = 570150^2 + 343957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-443377440349 is a prime.

It is a super-2 number, since 2×443377440349² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 443377440296 and 443377440305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443377440749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221688720174 + 221688720175.

It is an arithmetic number, because the mean of its divisors is an integer number (221688720175).

Almost surely, 2^443377440349 is an apocalyptic number.

It is an amenable number.

443377440349 is a deficient number, since it is larger than the sum of its proper divisors (1).

443377440349 is an equidigital number, since it uses as much as digits as its factorization.

443377440349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 52.

The spelling of 443377440349 in words is "four hundred forty-three billion, three hundred seventy-seven million, four hundred forty thousand, three hundred forty-nine".