394466406 has 16 divisors (see below), whose sum is σ = 789793200. Its totient is φ = 131345408.

The previous prime is 394466327. The next prime is 394466411. The reversal of 394466406 is 604664493.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29811 + ... + 40958.

It is an arithmetic number, because the mean of its divisors is an integer number (49362075).

Almost surely, 2^394466406 is an apocalyptic number.

394466406 is an abundant number, since it is smaller than the sum of its proper divisors (395326794).

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

394466406 is a wasteful number, since it uses less digits than its factorization.

394466406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71703.

The product of its (nonzero) digits is 373248, while the sum is 42.

The square root of 394466406 is about 19861.1783638333. The cubic root of 394466406 is about 733.3928547188.

The spelling of 394466406 in words is "three hundred ninety-four million, four hundred sixty-six thousand, four hundred six".