285227888 has 20 divisors (see below), whose sum is σ = 602868408. Its totient is φ = 129648960.

The previous prime is 285227879. The next prime is 285227893. The reversal of 285227888 is 888722582.

It is a congruent number.

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, 810131 + ... + 810482.

Almost surely, 2^285227888 is an apocalyptic number.

It is an amenable number.

285227888 is an abundant number, since it is smaller than the sum of its proper divisors (317640520).

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

285227888 is a wasteful number, since it uses less digits than its factorization.

285227888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620632 (or 1620626 counting only the distinct ones).

The product of its digits is 1146880, while the sum is 50.

The square root of 285227888 is about 16888.6911274971. The cubic root of 285227888 is about 658.2597927716.

The spelling of 285227888 in words is "two hundred eighty-five million, two hundred twenty-seven thousand, eight hundred eighty-eight".