384418 has 8 divisors (see below), whose sum is σ = 584748. Its totient is φ = 189504.

The previous prime is 384407. The next prime is 384437. The reversal of 384418 is 814483.

It can be written as a sum of positive squares in 2 ways, for example, as 375769 + 8649 = 613^2 + 93^2 .

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

It is an Ulam number.

It is an unprimeable 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, 1171 + ... + 1462.

2³⁸⁴⁴¹⁸ is an apocalyptic number.

384418 is a deficient number, since it is larger than the sum of its proper divisors (200330).

384418 is a wasteful number, since it uses less digits than its factorization.

384418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708.

The product of its digits is 3072, while the sum is 28.

The square root of 384418 is about 620.0145159591. The cubic root of 384418 is about 72.7111876359.

The spelling of 384418 in words is "three hundred eighty-four thousand, four hundred eighteen".