285845856 has 48 divisors (see below), whose sum is σ = 753202800. Its totient is φ = 94919168.

The previous prime is 285845843. The next prime is 285845867. The reversal of 285845856 is 658548582.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 285845799 and 285845808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20290 + ... + 31358.

It is an arithmetic number, because the mean of its divisors is an integer number (15691725).

Almost surely, 2^285845856 is an apocalyptic number.

It is an amenable number.

285845856 is an abundant number, since it is smaller than the sum of its proper divisors (467356944).

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

285845856 is a wasteful number, since it uses less digits than its factorization.

285845856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11351 (or 11343 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 51.

The square root of 285845856 is about 16906.9765481590. The cubic root of 285845856 is about 658.7348398971.

The spelling of 285845856 in words is "two hundred eighty-five million, eight hundred forty-five thousand, eight hundred fifty-six".