394344384 has 112 divisors (see below), whose sum is σ = 1244364288. Its totient is φ = 107762688.

The previous prime is 394344341. The next prime is 394344421. The reversal of 394344384 is 483443493.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 24534 + ... + 37290.

Almost surely, 2^394344384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394344384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622182144).

394344384 is an abundant number, since it is smaller than the sum of its proper divisors (850019904).

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

394344384 is a wasteful number, since it uses less digits than its factorization.

394344384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12802 (or 12792 counting only the distinct ones).

The product of its digits is 497664, while the sum is 42.

The square root of 394344384 is about 19858.1062541220. The cubic root of 394344384 is about 733.3172257252.

The spelling of 394344384 in words is "three hundred ninety-four million, three hundred forty-four thousand, three hundred eighty-four".