394685424 has 60 divisors (see below), whose sum is σ = 1262370096. Its totient is φ = 112766976.

The previous prime is 394685419. The next prime is 394685449. The reversal of 394685424 is 424586493.

It is a self number, because there is not a number n which added to its sum of digits gives 394685424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194769 + ... + 196784.

Almost surely, 2^394685424 is an apocalyptic number.

It is an amenable number.

394685424 is an abundant number, since it is smaller than the sum of its proper divisors (867684672).

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

394685424 is a wasteful number, since it uses less digits than its factorization.

394685424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391574 (or 391565 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 394685424 is about 19866.6913198952. The cubic root of 394685424 is about 733.5285625299.

The spelling of 394685424 in words is "three hundred ninety-four million, six hundred eighty-five thousand, four hundred twenty-four".