380630209 has 2 divisors, whose sum is σ = 380630210. Its totient is φ = 380630208.

The previous prime is 380630203. The next prime is 380630227. The reversal of 380630209 is 902036083.

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., 267420609 + 113209600 = 16353^2 + 10640^2 .

It is a cyclic number.

It is not a de Polignac number, because 380630209 - 2⁵ = 380630177 is a prime.

It is not a weakly prime, because it can be changed into another prime (380630203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190315104 + 190315105.

It is an arithmetic number, because the mean of its divisors is an integer number (190315105).

Almost surely, 2^380630209 is an apocalyptic number.

It is an amenable number.

380630209 is a deficient number, since it is larger than the sum of its proper divisors (1).

380630209 is an equidigital number, since it uses as much as digits as its factorization.

380630209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 380630209 is about 19509.7465129612. The cubic root of 380630209 is about 724.7158356833.

The spelling of 380630209 in words is "three hundred eighty million, six hundred thirty thousand, two hundred nine".