284448860 has 12 divisors (see below), whose sum is σ = 597342648. Its totient is φ = 113779536.

The previous prime is 284448847. The next prime is 284448869. The reversal of 284448860 is 68844482.

It is a happy number.

It is a super-2 number, since 2×284448860² = 161822307910599200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284448869) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 7111202 + ... + 7111241.

It is an arithmetic number, because the mean of its divisors is an integer number (49778554).

Almost surely, 2^284448860 is an apocalyptic number.

284448860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284448860 is an abundant number, since it is smaller than the sum of its proper divisors (312893788).

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

284448860 is a wasteful number, since it uses less digits than its factorization.

284448860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14222452 (or 14222450 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 44.

The square root of 284448860 is about 16865.6117588423. The cubic root of 284448860 is about 657.6599561673.

The spelling of 284448860 in words is "two hundred eighty-four million, four hundred forty-eight thousand, eight hundred sixty".