28830244 has 6 divisors (see below), whose sum is σ = 50452934. Its totient is φ = 14415120.

The previous prime is 28830233. The next prime is 28830271. The reversal of 28830244 is 44203882.

It can be written as a sum of positive squares in only one way, i.e., 27040000 + 1790244 = 5200^2 + 1338^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3603777 + ... + 3603784.

Almost surely, 2^28830244 is an apocalyptic number.

It is an amenable number.

28830244 is a deficient number, since it is larger than the sum of its proper divisors (21622690).

28830244 is a wasteful number, since it uses less digits than its factorization.

28830244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7207565 (or 7207563 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 28830244 is about 5369.3802249422. The cubic root of 28830244 is about 306.6310329317.

The spelling of 28830244 in words is "twenty-eight million, eight hundred thirty thousand, two hundred forty-four".