443381629 has 2 divisors, whose sum is σ = 443381630. Its totient is φ = 443381628.

The previous prime is 443381599. The next prime is 443381669. The reversal of 443381629 is 926183344.

It is a happy number.

It is an a-pointer prime, because the next prime (443381669) can be obtained adding 443381629 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314104729 + 129276900 = 17723^2 + 11370^2 .

It is a cyclic number.

It is not a de Polignac number, because 443381629 - 2¹⁵ = 443348861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 443381591 and 443381600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443381669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221690814 + 221690815.

It is an arithmetic number, because the mean of its divisors is an integer number (221690815).

Almost surely, 2^443381629 is an apocalyptic number.

It is an amenable number.

443381629 is a deficient number, since it is larger than the sum of its proper divisors (1).

443381629 is an equidigital number, since it uses as much as digits as its factorization.

443381629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 40.

The square root of 443381629 is about 21056.6290986948. The cubic root of 443381629 is about 762.5340328445.

The spelling of 443381629 in words is "four hundred forty-three million, three hundred eighty-one thousand, six hundred twenty-nine".