28680176 has 40 divisors (see below), whose sum is σ = 63936384. Its totient is φ = 12208320.

The previous prime is 28680163. The next prime is 28680181. The reversal of 28680176 is 67108682.

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, 17471 + ... + 19041.

Almost surely, 2^28680176 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 28680176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31968192).

28680176 is an abundant number, since it is smaller than the sum of its proper divisors (35256208).

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

28680176 is a wasteful number, since it uses less digits than its factorization.

28680176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749 (or 1743 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 28680176 is about 5355.3875676743. The cubic root of 28680176 is about 306.0980789738.

The spelling of 28680176 in words is "twenty-eight million, six hundred eighty thousand, one hundred seventy-six".