285028156 has 12 divisors (see below), whose sum is σ = 570056368. Its totient is φ = 122154912.

The previous prime is 285028147. The next prime is 285028169. The reversal of 285028156 is 651820582.

285028156 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5089761 + ... + 5089816.

Almost surely, 2^285028156 is an apocalyptic number.

It is an amenable number.

285028156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

285028156 is a wasteful number, since it uses less digits than its factorization.

285028156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10179588 (or 10179586 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 285028156 is about 16882.7769042892. The cubic root of 285028156 is about 658.1061071852.

The spelling of 285028156 in words is "two hundred eighty-five million, twenty-eight thousand, one hundred fifty-six".