394211969208 has 64 divisors (see below), whose sum is σ = 1095101088000. Its totient is φ = 131395849056.

The previous prime is 394211969197. The next prime is 394211969209. The reversal of 394211969208 is 802969112493.

394211969208 is a `hidden beast` number, since 3 + 9 + 421 + 1 + 9 + 6 + 9 + 208 = 666.

394211969208 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394211969209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4166733 + ... + 4260291.

It is an arithmetic number, because the mean of its divisors is an integer number (17110954500).

Almost surely, 2^394211969208 is an apocalyptic number.

It is an amenable number.

394211969208 is an abundant number, since it is smaller than the sum of its proper divisors (700889118792).

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

394211969208 is a wasteful number, since it uses less digits than its factorization.

394211969208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113081 (or 113071 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 394211969208 in words is "three hundred ninety-four billion, two hundred eleven million, nine hundred sixty-nine thousand, two hundred eight".