285147664 has 40 divisors (see below), whose sum is σ = 586134360. Its totient is φ = 133920768.

The previous prime is 285147659. The next prime is 285147671. The reversal of 285147664 is 466741582.

It can be written as a sum of positive squares in 4 ways, for example, as 92160000 + 192987664 = 9600^2 + 13892^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 285147664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231402 + ... + 232630.

It is an arithmetic number, because the mean of its divisors is an integer number (14653359).

Almost surely, 2^285147664 is an apocalyptic number.

It is an amenable number.

285147664 is an abundant number, since it is smaller than the sum of its proper divisors (300986696).

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

285147664 is a wasteful number, since it uses less digits than its factorization.

285147664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107 (or 2101 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 285147664 is about 16886.3158800255. The cubic root of 285147664 is about 658.1980723162.

The spelling of 285147664 in words is "two hundred eighty-five million, one hundred forty-seven thousand, six hundred sixty-four".