394857418 has 16 divisors (see below), whose sum is σ = 595947456. Its totient is φ = 196212640.

The previous prime is 394857413. The next prime is 394857461. The reversal of 394857418 is 814758493.

It is not an unprimeable number, because it can be changed into a prime (394857413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274830 + ... + 276262.

It is an arithmetic number, because the mean of its divisors is an integer number (37246716).

Almost surely, 2^394857418 is an apocalyptic number.

394857418 is a deficient number, since it is larger than the sum of its proper divisors (201090038).

394857418 is a wasteful number, since it uses less digits than its factorization.

394857418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189.

The product of its digits is 967680, while the sum is 49.

The square root of 394857418 is about 19871.0195510950. The cubic root of 394857418 is about 733.6350981675.

The spelling of 394857418 in words is "three hundred ninety-four million, eight hundred fifty-seven thousand, four hundred eighteen".