395195540 has 12 divisors (see below), whose sum is σ = 829910676. Its totient is φ = 158078208.

The previous prime is 395195513. The next prime is 395195551. The reversal of 395195540 is 45591593.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 227285776 + 167909764 = 15076^2 + 12958^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9879869 + ... + 9879908.

It is an arithmetic number, because the mean of its divisors is an integer number (69159223).

Almost surely, 2^395195540 is an apocalyptic number.

It is an amenable number.

395195540 is an abundant number, since it is smaller than the sum of its proper divisors (434715136).

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

395195540 is a wasteful number, since it uses less digits than its factorization.

395195540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19759786 (or 19759784 counting only the distinct ones).

The product of its (nonzero) digits is 121500, while the sum is 41.

The square root of 395195540 is about 19879.5256482643. The cubic root of 395195540 is about 733.8444457984.

The spelling of 395195540 in words is "three hundred ninety-five million, one hundred ninety-five thousand, five hundred forty".