285545028 has 12 divisors (see below), whose sum is σ = 666271760. Its totient is φ = 95181672.

The previous prime is 285545017. The next prime is 285545047. The reversal of 285545028 is 820545582.

It is a tau number, because it is divible by the number of its divisors (12).

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, 11897698 + ... + 11897721.

Almost surely, 2^285545028 is an apocalyptic number.

It is an amenable number.

285545028 is an abundant number, since it is smaller than the sum of its proper divisors (380726732).

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

285545028 is a wasteful number, since it uses less digits than its factorization.

285545028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23795426 (or 23795424 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 39.

The square root of 285545028 is about 16898.0776421462. The cubic root of 285545028 is about 658.5036716661.

The spelling of 285545028 in words is "two hundred eighty-five million, five hundred forty-five thousand, twenty-eight".