284284028 has 24 divisors (see below), whose sum is σ = 575769600. Its totient is φ = 120292848.

The previous prime is 284284019. The next prime is 284284087. The reversal of 284284028 is 820482482.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 284283982 and 284284000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62048 + ... + 66471.

It is an arithmetic number, because the mean of its divisors is an integer number (23990400).

Almost surely, 2^284284028 is an apocalyptic number.

284284028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

284284028 is an abundant number, since it is smaller than the sum of its proper divisors (291485572).

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

284284028 is a wasteful number, since it uses less digits than its factorization.

284284028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128609 (or 128607 counting only the distinct ones).

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

The square root of 284284028 is about 16860.7244209731. The cubic root of 284284028 is about 657.5328983524.

The spelling of 284284028 in words is "two hundred eighty-four million, two hundred eighty-four thousand, twenty-eight".