395889738 has 16 divisors (see below), whose sum is σ = 833452320. Its totient is φ = 125017776.

The previous prime is 395889713. The next prime is 395889749. The reversal of 395889738 is 837988593.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1736245 + ... + 1736472.

It is an arithmetic number, because the mean of its divisors is an integer number (52090770).

Almost surely, 2^395889738 is an apocalyptic number.

395889738 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

395889738 is an abundant number, since it is smaller than the sum of its proper divisors (437562582).

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

395889738 is a wasteful number, since it uses less digits than its factorization.

395889738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472741.

The product of its digits is 13063680, while the sum is 60.

The square root of 395889738 is about 19896.9781122662. The cubic root of 395889738 is about 734.2738832934.

The spelling of 395889738 in words is "three hundred ninety-five million, eight hundred eighty-nine thousand, seven hundred thirty-eight".