380339989 has 2 divisors, whose sum is σ = 380339990. Its totient is φ = 380339988.

The previous prime is 380339969. The next prime is 380340011. The reversal of 380339989 is 989933083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 367680625 + 12659364 = 19175^2 + 3558^2 .

It is an emirp because it is prime and its reverse (989933083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 380339989 - 2⁵ = 380339957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380339969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190169994 + 190169995.

It is an arithmetic number, because the mean of its divisors is an integer number (190169995).

Almost surely, 2^380339989 is an apocalyptic number.

It is an amenable number.

380339989 is a deficient number, since it is larger than the sum of its proper divisors (1).

380339989 is an equidigital number, since it uses as much as digits as its factorization.

380339989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The square root of 380339989 is about 19502.3072737561. The cubic root of 380339989 is about 724.5315969272.

The spelling of 380339989 in words is "three hundred eighty million, three hundred thirty-nine thousand, nine hundred eighty-nine".