384402 has 8 divisors (see below), whose sum is σ = 768816. Its totient is φ = 128132.

The previous prime is 384383. The next prime is 384403. The reversal of 384402 is 204483.

It is a happy number.

384402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

384402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (384403) by changing a digit.

384402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32028 + ... + 32039.

It is an arithmetic number, because the mean of its divisors is an integer number (96102).

2³⁸⁴⁴⁰² is an apocalyptic number.

384402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

384402 is a wasteful number, since it uses less digits than its factorization.

384402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64072.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 384402 is about 620.0016129011. The cubic root of 384402 is about 72.7101788424.

Adding to 384402 its reverse (204483), we get a palindrome (588885).

The spelling of 384402 in words is "three hundred eighty-four thousand, four hundred two".