395621541 has 18 divisors (see below), whose sum is σ = 664752582. Its totient is φ = 226069200.

The previous prime is 395621519. The next prime is 395621557. The reversal of 395621541 is 145126593.

395621541 is a `hidden beast` number, since 3 + 95 + 6 + 21 + 541 = 666.

It can be written as a sum of positive squares in only one way, i.e., 336869316 + 58752225 = 18354^2 + 7665^2 .

It is not a de Polignac number, because 395621541 - 2⁹ = 395621029 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 395621496 and 395621505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395625541) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 448110 + ... + 448991.

It is an arithmetic number, because the mean of its divisors is an integer number (36930699).

Almost surely, 2^395621541 is an apocalyptic number.

It is an amenable number.

395621541 is a deficient number, since it is larger than the sum of its proper divisors (269131041).

395621541 is a wasteful number, since it uses less digits than its factorization.

395621541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897121 (or 897111 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 395621541 is about 19890.2373289008. The cubic root of 395621541 is about 734.1080336297.

The spelling of 395621541 in words is "three hundred ninety-five million, six hundred twenty-one thousand, five hundred forty-one".