395571285 has 12 divisors (see below), whose sum is σ = 685656972. Its totient is φ = 210971328.

The previous prime is 395571263. The next prime is 395571299. The reversal of 395571285 is 582175593.

395571285 is a `hidden beast` number, since 3 + 9 + 557 + 12 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 97594641 + 297976644 = 9879^2 + 17262^2 .

It is not a de Polignac number, because 395571285 - 2¹³ = 395563093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 8790473 = 395571285 / (3 + 9 + 5 + 5 + 7 + 1 + 2 + 8 + 5).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 395571285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4395192 + ... + 4395281.

It is an arithmetic number, because the mean of its divisors is an integer number (57138081).

Almost surely, 2^395571285 is an apocalyptic number.

It is an amenable number.

395571285 is a deficient number, since it is larger than the sum of its proper divisors (290085687).

395571285 is a wasteful number, since it uses less digits than its factorization.

395571285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8790484 (or 8790481 counting only the distinct ones).

The product of its digits is 378000, while the sum is 45.

The square root of 395571285 is about 19888.9739554357. The cubic root of 395571285 is about 734.0769476112.

The spelling of 395571285 in words is "three hundred ninety-five million, five hundred seventy-one thousand, two hundred eighty-five".