394773906 has 32 divisors (see below), whose sum is σ = 834609600. Its totient is φ = 124139520.

The previous prime is 394773901. The next prime is 394773913. The reversal of 394773906 is 609377493.

It is not an unprimeable number, because it can be changed into a prime (394773901) 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, 20290 + ... + 34658.

It is an arithmetic number, because the mean of its divisors is an integer number (26081550).

Almost surely, 2^394773906 is an apocalyptic number.

394773906 is an abundant number, since it is smaller than the sum of its proper divisors (439835694).

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

394773906 is a wasteful number, since it uses less digits than its factorization.

394773906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14634.

The product of its (nonzero) digits is 857304, while the sum is 48.

The square root of 394773906 is about 19868.9180883107. The cubic root of 394773906 is about 733.5833734593.

The spelling of 394773906 in words is "three hundred ninety-four million, seven hundred seventy-three thousand, nine hundred six".