384399443 has 2 divisors, whose sum is σ = 384399444. Its totient is φ = 384399442.

The previous prime is 384399413. The next prime is 384399527. The reversal of 384399443 is 344993483.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 384399443 - 2¹⁴ = 384383059 is a prime.

It is not a weakly prime, because it can be changed into another prime (384399413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192199721 + 192199722.

It is an arithmetic number, because the mean of its divisors is an integer number (192199722).

Almost surely, 2^384399443 is an apocalyptic number.

384399443 is a deficient number, since it is larger than the sum of its proper divisors (1).

384399443 is an equidigital number, since it uses as much as digits as its factorization.

384399443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 47.

The square root of 384399443 is about 19606.1072882916. The cubic root of 384399443 is about 727.1001762199.

The spelling of 384399443 in words is "three hundred eighty-four million, three hundred ninety-nine thousand, four hundred forty-three".