28300556 has 12 divisors (see below), whose sum is σ = 49610568. Its totient is φ = 14126112.

The previous prime is 28300543. The next prime is 28300561. The reversal of 28300556 is 65500382.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3266 + ... + 8201.

It is an arithmetic number, because the mean of its divisors is an integer number (4134214).

Almost surely, 2^28300556 is an apocalyptic number.

It is an amenable number.

28300556 is a deficient number, since it is larger than the sum of its proper divisors (21310012).

28300556 is a wasteful number, since it uses less digits than its factorization.

28300556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12088 (or 12086 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 28300556 is about 5319.8266889063. The cubic root of 28300556 is about 304.7415386300.

The spelling of 28300556 in words is "twenty-eight million, three hundred thousand, five hundred fifty-six".