283404728 has 24 divisors (see below), whose sum is σ = 549038880. Its totient is φ = 137003040.

The previous prime is 283404713. The next prime is 283404731. The reversal of 283404728 is 827404382.

It is a happy number.

283404728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 283404691 and 283404700.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 264578 + ... + 265646.

It is an arithmetic number, because the mean of its divisors is an integer number (22876620).

Almost surely, 2^283404728 is an apocalyptic number.

It is an amenable number.

283404728 is a deficient number, since it is larger than the sum of its proper divisors (265634152).

283404728 is an equidigital number, since it uses as much as digits as its factorization.

283404728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 283404728 is about 16834.6288346373. The cubic root of 283404728 is about 656.8542744584.

The spelling of 283404728 in words is "two hundred eighty-three million, four hundred four thousand, seven hundred twenty-eight".