285327660 has 96 divisors (see below), whose sum is σ = 849139200. Its totient is φ = 71339008.

The previous prime is 285327659. The next prime is 285327709. The reversal of 285327660 is 66723582.

It is a super-2 number, since 2×285327660² = 162823747122151200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 476041 + ... + 476639.

It is an arithmetic number, because the mean of its divisors is an integer number (8845200).

Almost surely, 2^285327660 is an apocalyptic number.

285327660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285327660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (424569600).

285327660 is an abundant number, since it is smaller than the sum of its proper divisors (563811540).

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

285327660 is a wasteful number, since it uses less digits than its factorization.

285327660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1093 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 285327660 is about 16891.6446801370. The cubic root of 285327660 is about 658.3365363657.

The spelling of 285327660 in words is "two hundred eighty-five million, three hundred twenty-seven thousand, six hundred sixty".