378441079 has 2 divisors, whose sum is σ = 378441080. Its totient is φ = 378441078.

The previous prime is 378441071. The next prime is 378441109. The reversal of 378441079 is 970144873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378441079 - 2³ = 378441071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378441071) 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, 189220539 + 189220540.

It is an arithmetic number, because the mean of its divisors is an integer number (189220540).

Almost surely, 2^378441079 is an apocalyptic number.

378441079 is a deficient number, since it is larger than the sum of its proper divisors (1).

378441079 is an equidigital number, since it uses as much as digits as its factorization.

378441079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 378441079 is about 19453.5621159725. The cubic root of 378441079 is about 723.3238035701.

The spelling of 378441079 in words is "three hundred seventy-eight million, four hundred forty-one thousand, seventy-nine".