382505449 has 2 divisors, whose sum is σ = 382505450. Its totient is φ = 382505448.

The previous prime is 382505407. The next prime is 382505503. The reversal of 382505449 is 944505283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 367412224 + 15093225 = 19168^2 + 3885^2 .

It is an emirp because it is prime and its reverse (944505283) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-382505449 is a prime.

It is not a weakly prime, because it can be changed into another prime (382500449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191252724 + 191252725.

It is an arithmetic number, because the mean of its divisors is an integer number (191252725).

Almost surely, 2^382505449 is an apocalyptic number.

It is an amenable number.

382505449 is a deficient number, since it is larger than the sum of its proper divisors (1).

382505449 is an equidigital number, since it uses as much as digits as its factorization.

382505449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 382505449 is about 19557.7465215193. The cubic root of 382505449 is about 725.9040321458.

The spelling of 382505449 in words is "three hundred eighty-two million, five hundred five thousand, four hundred forty-nine".