384424 has 16 divisors (see below), whose sum is σ = 746100. Its totient is φ = 185472.

The previous prime is 384407. The next prime is 384437. The reversal of 384424 is 424483.

It can be written as a sum of positive squares in 2 ways, for example, as 381924 + 2500 = 618^2 + 50^2 .

It is an unprimeable number.

384424 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, 597 + ... + 1060.

2³⁸⁴⁴²⁴ is an apocalyptic number.

It is an amenable number.

384424 is a deficient number, since it is larger than the sum of its proper divisors (361676).

384424 is a wasteful number, since it uses less digits than its factorization.

384424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692 (or 1688 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 384424 is about 620.0193545366. The cubic root of 384424 is about 72.7115659263.

It can be divided in two parts, 384 and 424, that added together give a palindrome (808).

The spelling of 384424 in words is "three hundred eighty-four thousand, four hundred twenty-four".