28551304 has 16 divisors (see below), whose sum is σ = 53727120. Its totient is φ = 14224080.

The previous prime is 28551287. The next prime is 28551323. The reversal of 28551304 is 40315582.

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, 4042 + ... + 8569.

It is an arithmetic number, because the mean of its divisors is an integer number (3357945).

Almost surely, 2^28551304 is an apocalyptic number.

It is an amenable number.

28551304 is a deficient number, since it is larger than the sum of its proper divisors (25175816).

28551304 is a wasteful number, since it uses less digits than its factorization.

28551304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12900 (or 12896 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 28551304 is about 5343.3420253620. The cubic root of 28551304 is about 305.6389150758.

Adding to 28551304 its reverse (40315582), we get a palindrome (68866886).

The spelling of 28551304 in words is "twenty-eight million, five hundred fifty-one thousand, three hundred four".