381744379 has 2 divisors, whose sum is σ = 381744380. Its totient is φ = 381744378.

The previous prime is 381744361. The next prime is 381744383. The reversal of 381744379 is 973447183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381744379 - 2⁹ = 381743867 is a prime.

It is not a weakly prime, because it can be changed into another prime (381744479) 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, 190872189 + 190872190.

It is an arithmetic number, because the mean of its divisors is an integer number (190872190).

Almost surely, 2^381744379 is an apocalyptic number.

381744379 is a deficient number, since it is larger than the sum of its proper divisors (1).

381744379 is an equidigital number, since it uses as much as digits as its factorization.

381744379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 46.

The square root of 381744379 is about 19538.2798372835. The cubic root of 381744379 is about 725.4222694236.

The spelling of 381744379 in words is "three hundred eighty-one million, seven hundred forty-four thousand, three hundred seventy-nine".