395445938 has 4 divisors (see below), whose sum is σ = 593168910. Its totient is φ = 197722968.

The previous prime is 395445937. The next prime is 395445977. The reversal of 395445938 is 839544593.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 382319809 + 13126129 = 19553^2 + 3623^2 .

It is not an unprimeable number, because it can be changed into a prime (395445937) by changing a digit.

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 as a sum of consecutive naturals, namely, 98861483 + ... + 98861486.

Almost surely, 2^395445938 is an apocalyptic number.

395445938 is a deficient number, since it is larger than the sum of its proper divisors (197722972).

395445938 is a wasteful number, since it uses less digits than its factorization.

395445938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197722971.

The product of its digits is 2332800, while the sum is 50.

The square root of 395445938 is about 19885.8225376774. The cubic root of 395445938 is about 733.9994023264. Note that the first 3 decimals are identical.

The spelling of 395445938 in words is "three hundred ninety-five million, four hundred forty-five thousand, nine hundred thirty-eight".