284828420 has 12 divisors (see below), whose sum is σ = 598139724. Its totient is φ = 113931360.

The previous prime is 284828419. The next prime is 284828443. The reversal of 284828420 is 24828482.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 156550144 + 128278276 = 12512^2 + 11326^2 .

It is a super-2 number, since 2×284828420² = 162254457679392800, which contains 22 as substring.

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, 7120691 + ... + 7120730.

It is an arithmetic number, because the mean of its divisors is an integer number (49844977).

Almost surely, 2^284828420 is an apocalyptic number.

284828420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284828420 is an abundant number, since it is smaller than the sum of its proper divisors (313311304).

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

284828420 is a wasteful number, since it uses less digits than its factorization.

284828420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14241430 (or 14241428 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 38.

The square root of 284828420 is about 16876.8604900319. The cubic root of 284828420 is about 657.9523467059.

The spelling of 284828420 in words is "two hundred eighty-four million, eight hundred twenty-eight thousand, four hundred twenty".