394915466 has 16 divisors (see below), whose sum is σ = 647336448. Its totient is φ = 179198400.

The previous prime is 394915453. The next prime is 394915471. The reversal of 394915466 is 664519493.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 394915466.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2090 + ... + 28181.

It is an arithmetic number, because the mean of its divisors is an integer number (40458528).

Almost surely, 2^394915466 is an apocalyptic number.

394915466 is a deficient number, since it is larger than the sum of its proper divisors (252420982).

394915466 is a wasteful number, since it uses less digits than its factorization.

394915466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30877.

The product of its digits is 699840, while the sum is 47.

The square root of 394915466 is about 19872.4801169859. The cubic root of 394915466 is about 733.6710469780.

The spelling of 394915466 in words is "three hundred ninety-four million, nine hundred fifteen thousand, four hundred sixty-six".