394133199 has 4 divisors (see below), whose sum is σ = 525510936. Its totient is φ = 262755464.

The previous prime is 394133167. The next prime is 394133239. The reversal of 394133199 is 991331493.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 394133199 - 2⁵ = 394133167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 394133199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394133149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 65688864 + ... + 65688869.

It is an arithmetic number, because the mean of its divisors is an integer number (131377734).

Almost surely, 2^394133199 is an apocalyptic number.

394133199 is a deficient number, since it is larger than the sum of its proper divisors (131377737).

394133199 is a wasteful number, since it uses less digits than its factorization.

394133199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131377736.

The product of its digits is 78732, while the sum is 42.

The square root of 394133199 is about 19852.7881920903. The cubic root of 394133199 is about 733.1862968061.

The spelling of 394133199 in words is "three hundred ninety-four million, one hundred thirty-three thousand, one hundred ninety-nine".