384159393 has 6 divisors (see below), whose sum is σ = 554896914. Its totient is φ = 256106256.

The previous prime is 384159367. The next prime is 384159473. The reversal of 384159393 is 393951483.

It can be written as a sum of positive squares in only one way, i.e., 383063184 + 1096209 = 19572^2 + 1047^2 .

It is not a de Polignac number, because 384159393 - 2¹⁷ = 384028321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (384159323) 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, 21342180 + ... + 21342197.

It is an arithmetic number, because the mean of its divisors is an integer number (92482819).

Almost surely, 2^384159393 is an apocalyptic number.

It is an amenable number.

384159393 is a deficient number, since it is larger than the sum of its proper divisors (170737521).

384159393 is a wasteful number, since it uses less digits than its factorization.

384159393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42684383 (or 42684380 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 384159393 is about 19599.9845153000. The cubic root of 384159393 is about 726.9487913819.

The spelling of 384159393 in words is "three hundred eighty-four million, one hundred fifty-nine thousand, three hundred ninety-three".