395039906 has 16 divisors (see below), whose sum is σ = 633060960. Its totient is φ = 184330080.

The previous prime is 395039903. The next prime is 395039929. The reversal of 395039906 is 609930593.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (395039903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75035 + ... + 80126.

It is an arithmetic number, because the mean of its divisors is an integer number (39566310).

Almost surely, 2^395039906 is an apocalyptic number.

395039906 is a deficient number, since it is larger than the sum of its proper divisors (238021054).

395039906 is a wasteful number, since it uses less digits than its factorization.

395039906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155249.

The product of its (nonzero) digits is 196830, while the sum is 44.

The square root of 395039906 is about 19875.6108333807. The cubic root of 395039906 is about 733.7481001240.

The spelling of 395039906 in words is "three hundred ninety-five million, thirty-nine thousand, nine hundred six".