384438 has 16 divisors (see below), whose sum is σ = 814320. Its totient is φ = 120576.

The previous prime is 384437. The next prime is 384469. The reversal of 384438 is 834483.

It is a plaindrome in base 8.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 384438.

It is not an unprimeable number, because it can be changed into a prime (384437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1783 + ... + 1986.

It is an arithmetic number, because the mean of its divisors is an integer number (50895).

2³⁸⁴⁴³⁸ is an apocalyptic number.

384438 is an abundant number, since it is smaller than the sum of its proper divisors (429882).

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

384438 is a wasteful number, since it uses less digits than its factorization.

384438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791.

The product of its digits is 9216, while the sum is 30.

The square root of 384438 is about 620.0306444040. The cubic root of 384438 is about 72.7124485884.

The spelling of 384438 in words is "three hundred eighty-four thousand, four hundred thirty-eight".