285423328 has 24 divisors (see below), whose sum is σ = 577116792. Its totient is φ = 138854016.

The previous prime is 285423311. The next prime is 285423349. The reversal of 285423328 is 823324582.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 3 ways as a sum of consecutive naturals, for example, 119350 + ... + 121717.

It is an arithmetic number, because the mean of its divisors is an integer number (24046533).

Almost surely, 2^285423328 is an apocalyptic number.

It is an amenable number.

285423328 is an abundant number, since it is smaller than the sum of its proper divisors (291693464).

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

285423328 is a wasteful number, since it uses less digits than its factorization.

285423328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241114 (or 241106 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 285423328 is about 16894.4762570492. The cubic root of 285423328 is about 658.4101064056.

The spelling of 285423328 in words is "two hundred eighty-five million, four hundred twenty-three thousand, three hundred twenty-eight".