394708304 has 20 divisors (see below), whose sum is σ = 785417364. Its totient is φ = 192019968.

The previous prime is 394708297. The next prime is 394708333. The reversal of 394708304 is 403807493.

It can be written as a sum of positive squares in 2 ways, for example, as 291726400 + 102981904 = 17080^2 + 10148^2 .

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 3 ways as a sum of consecutive naturals, for example, 332777 + ... + 333960.

Almost surely, 2^394708304 is an apocalyptic number.

It is an amenable number.

394708304 is a deficient number, since it is larger than the sum of its proper divisors (390709060).

394708304 is a wasteful number, since it uses less digits than its factorization.

394708304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666782 (or 666776 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 394708304 is about 19867.2671497617. The cubic root of 394708304 is about 733.5427365262.

It can be divided in two parts, 39470 and 8304, that added together give a palindrome (47774).

The spelling of 394708304 in words is "three hundred ninety-four million, seven hundred eight thousand, three hundred four".