380788381 has 2 divisors, whose sum is σ = 380788382. Its totient is φ = 380788380.

The previous prime is 380788379. The next prime is 380788393. The reversal of 380788381 is 183887083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378925156 + 1863225 = 19466^2 + 1365^2 .

It is a cyclic number.

It is not a de Polignac number, because 380788381 - 2¹ = 380788379 is a prime.

It is a super-2 number, since 2×380788381² = 289999582209202322, which contains 22 as substring.

Together with 380788379, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380788351) 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, 190394190 + 190394191.

It is an arithmetic number, because the mean of its divisors is an integer number (190394191).

Almost surely, 2^380788381 is an apocalyptic number.

It is an amenable number.

380788381 is a deficient number, since it is larger than the sum of its proper divisors (1).

380788381 is an equidigital number, since it uses as much as digits as its factorization.

380788381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 380788381 is about 19513.7997581199. The cubic root of 380788381 is about 724.8162077118.

The spelling of 380788381 in words is "three hundred eighty million, seven hundred eighty-eight thousand, three hundred eighty-one".