28045804 has 36 divisors (see below), whose sum is σ = 52007032. Its totient is φ = 13224960.

The previous prime is 28045747. The next prime is 28045811. The reversal of 28045804 is 40854082.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289084 + ... + 289180.

Almost surely, 2^28045804 is an apocalyptic number.

It is an amenable number.

28045804 is a deficient number, since it is larger than the sum of its proper divisors (23961228).

28045804 is a wasteful number, since it uses less digits than its factorization.

28045804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 28045804 is about 5295.8289247293. The cubic root of 28045804 is about 303.8243878393.

Adding to 28045804 its reverse (40854082), we get a palindrome (68899886).

The spelling of 28045804 in words is "twenty-eight million, forty-five thousand, eight hundred four".