378044423 has 2 divisors, whose sum is σ = 378044424. Its totient is φ = 378044422.

The previous prime is 378044417. The next prime is 378044431. The reversal of 378044423 is 324440873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378044423 - 2²⁰ = 376995847 is a prime.

It is a super-2 number, since 2×378044423² = 285835171522805858, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378044483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189022211 + 189022212.

It is an arithmetic number, because the mean of its divisors is an integer number (189022212).

Almost surely, 2^378044423 is an apocalyptic number.

378044423 is a deficient number, since it is larger than the sum of its proper divisors (1).

378044423 is an equidigital number, since it uses as much as digits as its factorization.

378044423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 378044423 is about 19443.3644979463. The cubic root of 378044423 is about 723.0710024155.

The spelling of 378044423 in words is "three hundred seventy-eight million, forty-four thousand, four hundred twenty-three".