28736204 has 12 divisors (see below), whose sum is σ = 57472464. Its totient is φ = 12315504.

The previous prime is 28736179. The next prime is 28736209. The reversal of 28736204 is 40263782.

28736204 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28736209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513119 + ... + 513174.

It is an arithmetic number, because the mean of its divisors is an integer number (4789372).

Almost surely, 2^28736204 is an apocalyptic number.

It is an amenable number.

28736204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28736204 is a wasteful number, since it uses less digits than its factorization.

28736204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026304 (or 1026302 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 28736204 is about 5360.6160093780. The cubic root of 28736204 is about 306.2972747234.

Adding to 28736204 its reverse (40263782), we get a palindrome (68999986).

The spelling of 28736204 in words is "twenty-eight million, seven hundred thirty-six thousand, two hundred four".