28533204 has 36 divisors (see below), whose sum is σ = 82429984. Its totient is φ = 8152272.

The previous prime is 28533173. The next prime is 28533221. The reversal of 28533204 is 40233582.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 56362 + ... + 56865.

Almost surely, 2^28533204 is an apocalyptic number.

It is an amenable number.

28533204 is an abundant number, since it is smaller than the sum of its proper divisors (53896780).

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

28533204 is a wasteful number, since it uses less digits than its factorization.

28533204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113244 (or 113239 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 28533204 is about 5341.6480602900. The cubic root of 28533204 is about 305.5743151800.

Adding to 28533204 its reverse (40233582), we get a palindrome (68766786).

It can be divided in two parts, 285 and 33204, that added together give a square (33489 = 183²).

The spelling of 28533204 in words is "twenty-eight million, five hundred thirty-three thousand, two hundred four".