394396344 has 64 divisors (see below), whose sum is σ = 1121049600. Its totient is φ = 128405088.

The previous prime is 394396279. The next prime is 394396349. The reversal of 394396344 is 443693493.

394396344 is a `hidden beast` number, since 3 + 9 + 4 + 3 + 9 + 634 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 394396344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394396349) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11944 + ... + 30519.

It is an arithmetic number, because the mean of its divisors is an integer number (17516400).

Almost surely, 2^394396344 is an apocalyptic number.

It is an amenable number.

394396344 is an abundant number, since it is smaller than the sum of its proper divisors (726653256).

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

394396344 is a wasteful number, since it uses less digits than its factorization.

394396344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42521 (or 42511 counting only the distinct ones).

The product of its digits is 839808, while the sum is 45.

The square root of 394396344 is about 19859.4144928797. The cubic root of 394396344 is about 733.3494323371.

The spelling of 394396344 in words is "three hundred ninety-four million, three hundred ninety-six thousand, three hundred forty-four".