28636204 has 24 divisors (see below), whose sum is σ = 51600528. Its totient is φ = 13896960.

The previous prime is 28636199. The next prime is 28636213. The reversal of 28636204 is 40263682.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 46104 + ... + 46720.

It is an arithmetic number, because the mean of its divisors is an integer number (2150022).

Almost surely, 2^28636204 is an apocalyptic number.

It is an amenable number.

28636204 is a deficient number, since it is larger than the sum of its proper divisors (22964324).

28636204 is a wasteful number, since it uses less digits than its factorization.

28636204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 28636204 is about 5351.2805943998. The cubic root of 28636204 is about 305.9415640190.

Adding to 28636204 its reverse (40263682), we get a palindrome (68899886).

The spelling of 28636204 in words is "twenty-eight million, six hundred thirty-six thousand, two hundred four".