394338005 has 16 divisors (see below), whose sum is σ = 482060160. Its totient is φ = 309586368.

The previous prime is 394337963. The next prime is 394338029. The reversal of 394338005 is 500833493.

It is a cyclic number.

It is not a de Polignac number, because 394338005 - 2¹⁶ = 394272469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321824 + ... + 323046.

It is an arithmetic number, because the mean of its divisors is an integer number (30128760).

Almost surely, 2^394338005 is an apocalyptic number.

It is an amenable number.

394338005 is a deficient number, since it is larger than the sum of its proper divisors (87722155).

394338005 is a wasteful number, since it uses less digits than its factorization.

394338005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 394338005 is about 19857.9456389628. The cubic root of 394338005 is about 733.3132716045.

The spelling of 394338005 in words is "three hundred ninety-four million, three hundred thirty-eight thousand, five".