284928816 has 20 divisors (see below), whose sum is σ = 736066232. Its totient is φ = 94976256.

The previous prime is 284928779. The next prime is 284928817. The reversal of 284928816 is 618829482.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 5936017 = 284928816 / (2 + 8 + 4 + 9 + 2 + 8 + 8 + 1 + 6).

It is not an unprimeable number, because it can be changed into a prime (284928817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2967961 + ... + 2968056.

Almost surely, 2^284928816 is an apocalyptic number.

It is an amenable number.

284928816 is an abundant number, since it is smaller than the sum of its proper divisors (451137416).

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

284928816 is a wasteful number, since it uses less digits than its factorization.

284928816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5936028 (or 5936022 counting only the distinct ones).

The product of its digits is 442368, while the sum is 48.

The square root of 284928816 is about 16879.8345963460. The cubic root of 284928816 is about 658.0296423917.

The spelling of 284928816 in words is "two hundred eighty-four million, nine hundred twenty-eight thousand, eight hundred sixteen".