285242970 has 16 divisors (see below), whose sum is σ = 684583200. Its totient is φ = 76064784.

The previous prime is 285242963. The next prime is 285242977. The reversal of 285242970 is 79242582.

It is an interprime number because it is at equal distance from previous prime (285242963) and next prime (285242977).

It is not an unprimeable number, because it can be changed into a prime (285242977) by changing a digit.

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, 4754020 + ... + 4754079.

It is an arithmetic number, because the mean of its divisors is an integer number (42786450).

Almost surely, 2^285242970 is an apocalyptic number.

285242970 is an abundant number, since it is smaller than the sum of its proper divisors (399340230).

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

285242970 is a wasteful number, since it uses less digits than its factorization.

285242970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9508109.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 285242970 is about 16889.1376334021. The cubic root of 285242970 is about 658.2713948386.

The spelling of 285242970 in words is "two hundred eighty-five million, two hundred forty-two thousand, nine hundred seventy".