384378389 has 8 divisors (see below), whose sum is σ = 387764160. Its totient is φ = 381005856.

The previous prime is 384378373. The next prime is 384378391. The reversal of 384378389 is 983873483.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 384378389 - 2⁴ = 384378373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 384378389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384378329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60257 + ... + 66329.

It is an arithmetic number, because the mean of its divisors is an integer number (48470520).

Almost surely, 2^384378389 is an apocalyptic number.

It is an amenable number.

384378389 is a deficient number, since it is larger than the sum of its proper divisors (3385771).

384378389 is a wasteful number, since it uses less digits than its factorization.

384378389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6619.

The product of its digits is 3483648, while the sum is 53.

The square root of 384378389 is about 19605.5703564064. The cubic root of 384378389 is about 727.0869012730.

The spelling of 384378389 in words is "three hundred eighty-four million, three hundred seventy-eight thousand, three hundred eighty-nine".