28608204 has 12 divisors (see below), whose sum is σ = 66752504. Its totient is φ = 9536064.

The previous prime is 28608199. The next prime is 28608211. The reversal of 28608204 is 40280682.

It is a happy number.

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

It is a super-2 number, since 2×28608204² = 1636858672211232, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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, 1191997 + ... + 1192020.

Almost surely, 2^28608204 is an apocalyptic number.

It is an amenable number.

28608204 is an abundant number, since it is smaller than the sum of its proper divisors (38144300).

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

28608204 is a wasteful number, since it uses less digits than its factorization.

28608204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384024 (or 2384022 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 28608204 is about 5348.6637583606. The cubic root of 28608204 is about 305.8418166581.

Adding to 28608204 its reverse (40280682), we get a palindrome (68888886).

The spelling of 28608204 in words is "twenty-eight million, six hundred eight thousand, two hundred four".