28080276 has 24 divisors (see below), whose sum is σ = 74880960. Its totient is φ = 8022912.

The previous prime is 28080257. The next prime is 28080289. The reversal of 28080276 is 67208082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167061 + ... + 167228.

It is an arithmetic number, because the mean of its divisors is an integer number (3120040).

Almost surely, 2^28080276 is an apocalyptic number.

It is an amenable number.

28080276 is an abundant number, since it is smaller than the sum of its proper divisors (46800684).

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

28080276 is a wasteful number, since it uses less digits than its factorization.

28080276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334303 (or 334301 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 28080276 is about 5299.0825621045. The cubic root of 28080276 is about 303.9488169832.

The spelling of 28080276 in words is "twenty-eight million, eighty thousand, two hundred seventy-six".