394965273828 has 48 divisors (see below), whose sum is σ = 930052742976. Its totient is φ = 130450944000.

The previous prime is 394965273809. The next prime is 394965273839. The reversal of 394965273828 is 828372569493.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241600 + ... + 921032.

It is an arithmetic number, because the mean of its divisors is an integer number (19376098812).

Almost surely, 2^394965273828 is an apocalyptic number.

It is an amenable number.

394965273828 is an abundant number, since it is smaller than the sum of its proper divisors (535087469148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394965273828 is a wasteful number, since it uses less digits than its factorization.

394965273828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679884 (or 679882 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 66.

The spelling of 394965273828 in words is "three hundred ninety-four billion, nine hundred sixty-five million, two hundred seventy-three thousand, eight hundred twenty-eight".