28830888 has 24 divisors (see below), whose sum is σ = 78083850. Its totient is φ = 9610272.

The previous prime is 28830869. The next prime is 28830889. The reversal of 28830888 is 88803882.

It can be written as a sum of positive squares in only one way, i.e., 22867524 + 5963364 = 4782^2 + 2442^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (28830889) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200143 + ... + 200286.

Almost surely, 2^28830888 is an apocalyptic number.

It is an amenable number.

28830888 is an abundant number, since it is smaller than the sum of its proper divisors (49252962).

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

28830888 is a wasteful number, since it uses less digits than its factorization.

28830888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400441 (or 400434 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The square root of 28830888 is about 5369.4401942847. The cubic root of 28830888 is about 306.6333160539.

The spelling of 28830888 in words is "twenty-eight million, eight hundred thirty thousand, eight hundred eighty-eight".