384129 has 16 divisors (see below), whose sum is σ = 584640. Its totient is φ = 249120.

The previous prime is 384113. The next prime is 384133. The reversal of 384129 is 921483.

It is not a de Polignac number, because 384129 - 2⁴ = 384113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (384029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 934 + ... + 1280.

It is an arithmetic number, because the mean of its divisors is an integer number (36540).

2³⁸⁴¹²⁹ is an apocalyptic number.

It is an amenable number.

384129 is a deficient number, since it is larger than the sum of its proper divisors (200511).

384129 is a wasteful number, since it uses less digits than its factorization.

384129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 391 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 384129 is about 619.7814130805. The cubic root of 384129 is about 72.6929619880.

The spelling of 384129 in words is "three hundred eighty-four thousand, one hundred twenty-nine".