285087052 has 12 divisors (see below), whose sum is σ = 516106080. Its totient is φ = 137628176.

The previous prime is 285087043. The next prime is 285087071. The reversal of 285087052 is 250780582.

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, 1228708 + ... + 1228939.

It is an arithmetic number, because the mean of its divisors is an integer number (43008840).

Almost surely, 2^285087052 is an apocalyptic number.

It is an amenable number.

285087052 is a deficient number, since it is larger than the sum of its proper divisors (231019028).

285087052 is a wasteful number, since it uses less digits than its factorization.

285087052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457680 (or 2457678 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 285087052 is about 16884.5210770102. The cubic root of 285087052 is about 658.1514327050.

The spelling of 285087052 in words is "two hundred eighty-five million, eighty-seven thousand, fifty-two".