285030288 has 60 divisors (see below), whose sum is σ = 799237660. Its totient is φ = 94825728.

The previous prime is 285030271. The next prime is 285030289. The reversal of 285030288 is 882030582.

It can be written as a sum of positive squares in 2 ways, for example, as 28005264 + 257025024 = 5292^2 + 16032^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (285030289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86658 + ... + 89886.

Almost surely, 2^285030288 is an apocalyptic number.

It is an amenable number.

285030288 is an abundant number, since it is smaller than the sum of its proper divisors (514207372).

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

285030288 is a wasteful number, since it uses less digits than its factorization.

285030288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856 (or 3847 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 285030288 is about 16882.8400454426. The cubic root of 285030288 is about 658.1077480509.

The spelling of 285030288 in words is "two hundred eighty-five million, thirty thousand, two hundred eighty-eight".