285215282 has 16 divisors (see below), whose sum is σ = 467150112. Its totient is φ = 129522720.

The previous prime is 285215267. The next prime is 285215297. The reversal of 285215282 is 282512582.

It is an interprime number because it is at equal distance from previous prime (285215267) and next prime (285215297).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20813 + ... + 31679.

It is an arithmetic number, because the mean of its divisors is an integer number (29196882).

Almost surely, 2^285215282 is an apocalyptic number.

285215282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

285215282 is a deficient number, since it is larger than the sum of its proper divisors (181934830).

285215282 is a wasteful number, since it uses less digits than its factorization.

285215282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12073.

The product of its digits is 25600, while the sum is 35.

The square root of 285215282 is about 16888.3179150560. The cubic root of 285215282 is about 658.2500950930.

The spelling of 285215282 in words is "two hundred eighty-five million, two hundred fifteen thousand, two hundred eighty-two".