28556196 has 12 divisors (see below), whose sum is σ = 66631152. Its totient is φ = 9518728.

The previous prime is 28556173. The next prime is 28556201. The reversal of 28556196 is 69165582.

It is a tau number, because it is divible by the number of its divisors (12).

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, 1189830 + ... + 1189853.

It is an arithmetic number, because the mean of its divisors is an integer number (5552596).

Almost surely, 2^28556196 is an apocalyptic number.

It is an amenable number.

28556196 is an abundant number, since it is smaller than the sum of its proper divisors (38074956).

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

28556196 is a wasteful number, since it uses less digits than its factorization.

28556196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379690 (or 2379688 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

The square root of 28556196 is about 5343.7997716980. The cubic root of 28556196 is about 305.6563702060.

The spelling of 28556196 in words is "twenty-eight million, five hundred fifty-six thousand, one hundred ninety-six".