394244469794 has 24 divisors (see below), whose sum is σ = 688329323280. Its totient is φ = 168860488776.

The previous prime is 394244469761. The next prime is 394244469797. The reversal of 394244469794 is 497964442493.

It is a self number, because there is not a number n which added to its sum of digits gives 394244469794.

It is not an unprimeable number, because it can be changed into a prime (394244469797) 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 11 ways as a sum of consecutive naturals, for example, 1043264 + ... + 1369995.

It is an arithmetic number, because the mean of its divisors is an integer number (28680388470).

Almost surely, 2^394244469794 is an apocalyptic number.

394244469794 is a deficient number, since it is larger than the sum of its proper divisors (294084853486).

394244469794 is a wasteful number, since it uses less digits than its factorization.

394244469794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414942 (or 2414935 counting only the distinct ones).

The product of its digits is 188116992, while the sum is 65.

The spelling of 394244469794 in words is "three hundred ninety-four billion, two hundred forty-four million, four hundred sixty-nine thousand, seven hundred ninety-four".