395603540 has 24 divisors (see below), whose sum is σ = 831174792. Its totient is φ = 158163840.

The previous prime is 395603513. The next prime is 395603543. The reversal of 395603540 is 45306593.

It can be written as a sum of positive squares in 4 ways, for example, as 149866564 + 245736976 = 12242^2 + 15676^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 395603540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395603543) 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, 54950 + ... + 61730.

It is an arithmetic number, because the mean of its divisors is an integer number (34632283).

Almost surely, 2^395603540 is an apocalyptic number.

It is an amenable number.

395603540 is an abundant number, since it is smaller than the sum of its proper divisors (435571252).

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

395603540 is a wasteful number, since it uses less digits than its factorization.

395603540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9707 (or 9705 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 395603540 is about 19889.7848153267. The cubic root of 395603540 is about 734.0968993530.

The spelling of 395603540 in words is "three hundred ninety-five million, six hundred three thousand, five hundred forty".