394606449772 has 24 divisors (see below), whose sum is σ = 724319328096. Its totient is φ = 187746966528.

The previous prime is 394606449761. The next prime is 394606449793. The reversal of 394606449772 is 277944606493.

It is a self number, because there is not a number n which added to its sum of digits gives 394606449772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11094163 + ... + 11129674.

It is an arithmetic number, because the mean of its divisors is an integer number (30179972004).

Almost surely, 2^394606449772 is an apocalyptic number.

It is an amenable number.

394606449772 is a deficient number, since it is larger than the sum of its proper divisors (329712878324).

394606449772 is a wasteful number, since it uses less digits than its factorization.

394606449772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22224057 (or 22224055 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 61.

The spelling of 394606449772 in words is "three hundred ninety-four billion, six hundred six million, four hundred forty-nine thousand, seven hundred seventy-two".