384738318 has 12 divisors (see below), whose sum is σ = 833599728. Its totient is φ = 128246100.

The previous prime is 384738313. The next prime is 384738323. The reversal of 384738318 is 813837483.

It is an interprime number because it is at equal distance from previous prime (384738313) and next prime (384738323).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384738311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10687158 + ... + 10687193.

It is an arithmetic number, because the mean of its divisors is an integer number (69466644).

Almost surely, 2^384738318 is an apocalyptic number.

384738318 is an abundant number, since it is smaller than the sum of its proper divisors (448861410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

384738318 is a wasteful number, since it uses less digits than its factorization.

384738318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21374359 (or 21374356 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 384738318 is about 19614.7474620501. The cubic root of 384738318 is about 727.3137766877.

The spelling of 384738318 in words is "three hundred eighty-four million, seven hundred thirty-eight thousand, three hundred eighteen".