285828028 has 6 divisors (see below), whose sum is σ = 500199056. Its totient is φ = 142914012.

The previous prime is 285828017. The next prime is 285828073. The reversal of 285828028 is 820828582.

It is a happy number.

285828028 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35728500 + ... + 35728507.

Almost surely, 2^285828028 is an apocalyptic number.

It is an amenable number.

285828028 is a deficient number, since it is larger than the sum of its proper divisors (214371028).

285828028 is a wasteful number, since it uses less digits than its factorization.

285828028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71457011 (or 71457009 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 43.

The square root of 285828028 is about 16906.4493019676. The cubic root of 285828028 is about 658.7211446733.

The spelling of 285828028 in words is "two hundred eighty-five million, eight hundred twenty-eight thousand, twenty-eight".