28710304 has 48 divisors (see below), whose sum is σ = 65596608. Its totient is φ = 12114432.

The previous prime is 28710301. The next prime is 28710313. The reversal of 28710304 is 40301782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28710301) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14052 + ... + 15964.

It is an arithmetic number, because the mean of its divisors is an integer number (1366596).

Almost surely, 2^28710304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28710304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32798304).

28710304 is an abundant number, since it is smaller than the sum of its proper divisors (36886304).

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

28710304 is a wasteful number, since it uses less digits than its factorization.

28710304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997 (or 1989 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 28710304 is about 5358.1996976597. The cubic root of 28710304 is about 306.2052249409.

The spelling of 28710304 in words is "twenty-eight million, seven hundred ten thousand, three hundred four".