394863814 has 16 divisors (see below), whose sum is σ = 624513600. Its totient is φ = 186727464.

The previous prime is 394863713. The next prime is 394863823. The reversal of 394863814 is 418368493.

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 7 ways as a sum of consecutive naturals, for example, 15129 + ... + 31915.

It is an arithmetic number, because the mean of its divisors is an integer number (39032100).

Almost surely, 2^394863814 is an apocalyptic number.

394863814 is a deficient number, since it is larger than the sum of its proper divisors (229649786).

394863814 is a wasteful number, since it uses less digits than its factorization.

394863814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17427.

The product of its digits is 497664, while the sum is 46.

The square root of 394863814 is about 19871.1804883354. The cubic root of 394863814 is about 733.6390593482.

The spelling of 394863814 in words is "three hundred ninety-four million, eight hundred sixty-three thousand, eight hundred fourteen".