380267609 has 2 divisors, whose sum is σ = 380267610. Its totient is φ = 380267608.

The previous prime is 380267597. The next prime is 380267623. The reversal of 380267609 is 906762083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324720400 + 55547209 = 18020^2 + 7453^2 .

It is a cyclic number.

It is not a de Polignac number, because 380267609 - 2⁴ = 380267593 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (380267689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190133804 + 190133805.

It is an arithmetic number, because the mean of its divisors is an integer number (190133805).

Almost surely, 2^380267609 is an apocalyptic number.

It is an amenable number.

380267609 is a deficient number, since it is larger than the sum of its proper divisors (1).

380267609 is an equidigital number, since it uses as much as digits as its factorization.

380267609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 380267609 is about 19500.4515075934. The cubic root of 380267609 is about 724.4856337316.

The spelling of 380267609 in words is "three hundred eighty million, two hundred sixty-seven thousand, six hundred nine".