285087332 has 12 divisors (see below), whose sum is σ = 502493040. Its totient is φ = 141517896.

The previous prime is 285087329. The next prime is 285087401. The reversal of 285087332 is 233780582.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255818 + ... + 256929.

It is an arithmetic number, because the mean of its divisors is an integer number (41874420).

Almost surely, 2^285087332 is an apocalyptic number.

It is an amenable number.

285087332 is a deficient number, since it is larger than the sum of its proper divisors (217405708).

285087332 is a wasteful number, since it uses less digits than its factorization.

285087332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512890 (or 512888 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 285087332 is about 16884.5293686262. The cubic root of 285087332 is about 658.1516481741.

The spelling of 285087332 in words is "two hundred eighty-five million, eighty-seven thousand, three hundred thirty-two".