285793728 has 56 divisors (see below), whose sum is σ = 824910720. Its totient is φ = 86603520.

The previous prime is 285793721. The next prime is 285793747. The reversal of 285793728 is 827397582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285793721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65548 + ... + 69771.

Almost surely, 2^285793728 is an apocalyptic number.

It is an amenable number.

285793728 is an abundant number, since it is smaller than the sum of its proper divisors (539116992).

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

285793728 is a wasteful number, since it uses less digits than its factorization.

285793728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135345 (or 135335 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 51.

The square root of 285793728 is about 16905.4348657466. The cubic root of 285793728 is about 658.6947942844.

The spelling of 285793728 in words is "two hundred eighty-five million, seven hundred ninety-three thousand, seven hundred twenty-eight".