384138342 has 48 divisors (see below), whose sum is σ = 993017520. Its totient is φ = 109753056.

The previous prime is 384138331. The next prime is 384138343. The reversal of 384138342 is 243831483.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 384138297 and 384138306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384138343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69943 + ... + 75234.

It is an arithmetic number, because the mean of its divisors is an integer number (20687865).

Almost surely, 2^384138342 is an apocalyptic number.

384138342 is an abundant number, since it is smaller than the sum of its proper divisors (608879178).

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

384138342 is a wasteful number, since it uses less digits than its factorization.

384138342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145202 (or 145189 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 384138342 is about 19599.4474922126. The cubic root of 384138342 is about 726.9355127977.

The spelling of 384138342 in words is "three hundred eighty-four million, one hundred thirty-eight thousand, three hundred forty-two".