394949445 has 48 divisors (see below), whose sum is σ = 724864896. Its totient is φ = 183145600.

The previous prime is 394949417. The next prime is 394949459. The reversal of 394949445 is 544949493.

It is not a de Polignac number, because 394949445 - 2⁸ = 394949189 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37015 + ... + 46475.

It is an arithmetic number, because the mean of its divisors is an integer number (15101352).

Almost surely, 2^394949445 is an apocalyptic number.

It is an amenable number.

394949445 is a deficient number, since it is larger than the sum of its proper divisors (329915451).

394949445 is a wasteful number, since it uses less digits than its factorization.

394949445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9514 (or 9503 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 51.

The square root of 394949445 is about 19873.3350246002. The cubic root of 394949445 is about 733.6920883532.

The spelling of 394949445 in words is "three hundred ninety-four million, nine hundred forty-nine thousand, four hundred forty-five".