394212446 has 8 divisors (see below), whose sum is σ = 592586280. Its totient is φ = 196683688.

The previous prime is 394212443. The next prime is 394212451. The reversal of 394212446 is 644212493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394212443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210101 + ... + 211968.

It is an arithmetic number, because the mean of its divisors is an integer number (74073285).

Almost surely, 2^394212446 is an apocalyptic number.

394212446 is a deficient number, since it is larger than the sum of its proper divisors (198373834).

394212446 is a wasteful number, since it uses less digits than its factorization.

394212446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422538.

The product of its digits is 41472, while the sum is 35.

The square root of 394212446 is about 19854.7839575252. The cubic root of 394212446 is about 733.2354332578.

The spelling of 394212446 in words is "three hundred ninety-four million, two hundred twelve thousand, four hundred forty-six".