285714148 has 24 divisors (see below), whose sum is σ = 531228600. Its totient is φ = 134201088.

The previous prime is 285714133. The next prime is 285714157. The reversal of 285714148 is 841417582.

It can be written as a sum of positive squares in 4 ways, for example, as 32012964 + 253701184 = 5658^2 + 15928^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 285714148.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28993 + ... + 37576.

It is an arithmetic number, because the mean of its divisors is an integer number (22134525).

Almost surely, 2^285714148 is an apocalyptic number.

It is an amenable number.

285714148 is a deficient number, since it is larger than the sum of its proper divisors (245514452).

285714148 is a wasteful number, since it uses less digits than its factorization.

285714148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66639 (or 66637 counting only the distinct ones).

The product of its digits is 71680, while the sum is 40.

The square root of 285714148 is about 16903.0810209263. The cubic root of 285714148 is about 658.6336501878.

The spelling of 285714148 in words is "two hundred eighty-five million, seven hundred fourteen thousand, one hundred forty-eight".