394194195 has 40 divisors (see below), whose sum is σ = 708111360. Its totient is φ = 209796480.

The previous prime is 394194191. The next prime is 394194223. The reversal of 394194195 is 591491493.

It is not a de Polignac number, because 394194195 - 2² = 394194191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 394194195.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394194191) 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 39 ways as a sum of consecutive naturals, for example, 307566 + ... + 308844.

It is an arithmetic number, because the mean of its divisors is an integer number (17702784).

Almost surely, 2^394194195 is an apocalyptic number.

394194195 is a deficient number, since it is larger than the sum of its proper divisors (313917165).

394194195 is a wasteful number, since it uses less digits than its factorization.

394194195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057 (or 2048 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 394194195 is about 19854.3243400525. The cubic root of 394194195 is about 733.2241174588.

The spelling of 394194195 in words is "three hundred ninety-four million, one hundred ninety-four thousand, one hundred ninety-five".