28303484 has 36 divisors (see below), whose sum is σ = 55313160. Its totient is φ = 12567360.

The previous prime is 28303463. The next prime is 28303493. The reversal of 28303484 is 48430382.

It is a self number, because there is not a number n which added to its sum of digits gives 28303484.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123482 + ... + 123710.

Almost surely, 2^28303484 is an apocalyptic number.

It is an amenable number.

28303484 is a deficient number, since it is larger than the sum of its proper divisors (27009676).

28303484 is a wasteful number, since it uses less digits than its factorization.

28303484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 28303484 is about 5320.1018787238. The cubic root of 28303484 is about 304.7520478753.

The spelling of 28303484 in words is "twenty-eight million, three hundred three thousand, four hundred eighty-four".