394809692 has 6 divisors (see below), whose sum is σ = 690916968. Its totient is φ = 197404844.

The previous prime is 394809637. The next prime is 394809719. The reversal of 394809692 is 296908493.

It is a self number, because there is not a number n which added to its sum of digits gives 394809692.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49351208 + ... + 49351215.

It is an arithmetic number, because the mean of its divisors is an integer number (115152828).

Almost surely, 2^394809692 is an apocalyptic number.

It is an amenable number.

394809692 is a deficient number, since it is larger than the sum of its proper divisors (296107276).

394809692 is a wasteful number, since it uses less digits than its factorization.

394809692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98702427 (or 98702425 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 50.

The square root of 394809692 is about 19869.8186202089. The cubic root of 394809692 is about 733.6055390761.

The spelling of 394809692 in words is "three hundred ninety-four million, eight hundred nine thousand, six hundred ninety-two".