285372828 has 96 divisors (see below), whose sum is σ = 800307200. Its totient is φ = 87417792.

The previous prime is 285372809. The next prime is 285372859. The reversal of 285372828 is 828273582.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 616125 + ... + 616587.

Almost surely, 2^285372828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285372828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400153600).

285372828 is an abundant number, since it is smaller than the sum of its proper divisors (514934372).

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

285372828 is a wasteful number, since it uses less digits than its factorization.

285372828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928 (or 920 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 285372828 is about 16892.9816195958. The cubic root of 285372828 is about 658.3712732430.

The spelling of 285372828 in words is "two hundred eighty-five million, three hundred seventy-two thousand, eight hundred twenty-eight".