28528204 has 18 divisors (see below), whose sum is σ = 50904140. Its totient is φ = 13989456.

The previous prime is 28528189. The next prime is 28528231. The reversal of 28528204 is 40282582.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9967 + ... + 12505.

Almost surely, 2^28528204 is an apocalyptic number.

It is an amenable number.

28528204 is a deficient number, since it is larger than the sum of its proper divisors (22375936).

28528204 is a wasteful number, since it uses less digits than its factorization.

28528204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649 (or 2594 counting only the distinct ones).

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

The square root of 28528204 is about 5341.1800194339. The cubic root of 28528204 is about 305.5564650894.

The spelling of 28528204 in words is "twenty-eight million, five hundred twenty-eight thousand, two hundred four".