285200068 has 6 divisors (see below), whose sum is σ = 499100126. Its totient is φ = 142600032.

The previous prime is 285200057. The next prime is 285200081. The reversal of 285200068 is 860002582.

It can be written as a sum of positive squares in only one way, i.e., 281635524 + 3564544 = 16782^2 + 1888^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35650005 + ... + 35650012.

Almost surely, 2^285200068 is an apocalyptic number.

It is an amenable number.

285200068 is a deficient number, since it is larger than the sum of its proper divisors (213900058).

285200068 is a wasteful number, since it uses less digits than its factorization.

285200068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71300021 (or 71300019 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 285200068 is about 16887.8674793474. The cubic root of 285200068 is about 658.2383907236.

The spelling of 285200068 in words is "two hundred eighty-five million, two hundred thousand, sixty-eight".