380380391 has 2 divisors, whose sum is σ = 380380392. Its totient is φ = 380380390.

The previous prime is 380380309. The next prime is 380380397. The reversal of 380380391 is 193083083.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 380380391 - 2¹⁰ = 380379367 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380380397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190190195 + 190190196.

It is an arithmetic number, because the mean of its divisors is an integer number (190190196).

Almost surely, 2^380380391 is an apocalyptic number.

380380391 is a deficient number, since it is larger than the sum of its proper divisors (1).

380380391 is an equidigital number, since it uses as much as digits as its factorization.

380380391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 380380391 is about 19503.3430724068. The cubic root of 380380391 is about 724.5572507194.

The spelling of 380380391 in words is "three hundred eighty million, three hundred eighty thousand, three hundred ninety-one".