394395464 has 16 divisors (see below), whose sum is σ = 778412400. Its totient is φ = 186818832.

The previous prime is 394395457. The next prime is 394395487. The reversal of 394395464 is 464593493.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1297202 + ... + 1297505.

It is an arithmetic number, because the mean of its divisors is an integer number (48650775).

Almost surely, 2^394395464 is an apocalyptic number.

It is an amenable number.

394395464 is a deficient number, since it is larger than the sum of its proper divisors (384016936).

394395464 is a wasteful number, since it uses less digits than its factorization.

394395464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594732 (or 2594728 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 47.

The square root of 394395464 is about 19859.3923371285. The cubic root of 394395464 is about 733.3488869061.

The spelling of 394395464 in words is "three hundred ninety-four million, three hundred ninety-five thousand, four hundred sixty-four".