394323980 has 12 divisors (see below), whose sum is σ = 828080400. Its totient is φ = 157729584.

The previous prime is 394323977. The next prime is 394324003. The reversal of 394323980 is 89323493.

394323980 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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, 9858080 + ... + 9858119.

It is an arithmetic number, because the mean of its divisors is an integer number (69006700).

Almost surely, 2^394323980 is an apocalyptic number.

It is an amenable number.

394323980 is an abundant number, since it is smaller than the sum of its proper divisors (433756420).

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

394323980 is a wasteful number, since it uses less digits than its factorization.

394323980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19716208 (or 19716206 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 394323980 is about 19857.5925026172. The cubic root of 394323980 is about 733.3045778440.

The spelling of 394323980 in words is "three hundred ninety-four million, three hundred twenty-three thousand, nine hundred eighty".