395471988 has 36 divisors (see below), whose sum is σ = 1013751648. Its totient is φ = 129966480.

The previous prime is 395471983. The next prime is 395472013. The reversal of 395471988 is 889174593.

395471988 is a `hidden beast` number, since 3 + 9 + 547 + 1 + 98 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395471981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74806 + ... + 79917.

It is an arithmetic number, because the mean of its divisors is an integer number (28159768).

Almost surely, 2^395471988 is an apocalyptic number.

It is an amenable number.

395471988 is an abundant number, since it is smaller than the sum of its proper divisors (618279660).

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

395471988 is a wasteful number, since it uses less digits than its factorization.

395471988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154804 (or 154799 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 395471988 is about 19886.4775161415. The cubic root of 395471988 is about 734.0155193753.

The spelling of 395471988 in words is "three hundred ninety-five million, four hundred seventy-one thousand, nine hundred eighty-eight".