380842919 has 2 divisors, whose sum is σ = 380842920. Its totient is φ = 380842918.

The previous prime is 380842879. The next prime is 380842921. The reversal of 380842919 is 919248083.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 380842919 - 2⁸ = 380842663 is a prime.

It is a super-2 number, since 2×380842919² = 290082657904881122, which contains 22 as substring.

Together with 380842921, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 380842919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380842939) 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, 190421459 + 190421460.

It is an arithmetic number, because the mean of its divisors is an integer number (190421460).

Almost surely, 2^380842919 is an apocalyptic number.

380842919 is a deficient number, since it is larger than the sum of its proper divisors (1).

380842919 is an equidigital number, since it uses as much as digits as its factorization.

380842919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 380842919 is about 19515.1971294169. The cubic root of 380842919 is about 724.8508097298.

The spelling of 380842919 in words is "three hundred eighty million, eight hundred forty-two thousand, nine hundred nineteen".