384328755 has 12 divisors (see below), whose sum is σ = 666169920. Its totient is φ = 204975312.

The previous prime is 384328753. The next prime is 384328783. The reversal of 384328755 is 557823483.

It is not a de Polignac number, because 384328755 - 2¹ = 384328753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 8540639 = 384328755 / (3 + 8 + 4 + 3 + 2 + 8 + 7 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 384328755.

It is not an unprimeable number, because it can be changed into a prime (384328753) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4270275 + ... + 4270364.

It is an arithmetic number, because the mean of its divisors is an integer number (55514160).

Almost surely, 2^384328755 is an apocalyptic number.

384328755 is a deficient number, since it is larger than the sum of its proper divisors (281841165).

384328755 is a wasteful number, since it uses less digits than its factorization.

384328755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8540650 (or 8540647 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 384328755 is about 19604.3045018180. The cubic root of 384328755 is about 727.0556041747.

The spelling of 384328755 in words is "three hundred eighty-four million, three hundred twenty-eight thousand, seven hundred fifty-five".