384381089 has 4 divisors (see below), whose sum is σ = 384680580. Its totient is φ = 384081600.

The previous prime is 384381073. The next prime is 384381097. The reversal of 384381089 is 980183483.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141800464 + 242580625 = 11908^2 + 15575^2 .

It is a cyclic number.

It is not a de Polignac number, because 384381089 - 2⁴ = 384381073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384381289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147812 + ... + 150389.

It is an arithmetic number, because the mean of its divisors is an integer number (96170145).

Almost surely, 2^384381089 is an apocalyptic number.

It is an amenable number.

384381089 is a deficient number, since it is larger than the sum of its proper divisors (299491).

384381089 is a wasteful number, since it uses less digits than its factorization.

384381089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299490.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 384381089 is about 19605.6392142669. The cubic root of 384381089 is about 727.0886037014.

The spelling of 384381089 in words is "three hundred eighty-four million, three hundred eighty-one thousand, eighty-nine".