728562204 has 18 divisors (see below), whose sum is σ = 1841643440. Its totient is φ = 242854056.

The previous prime is 728562193. The next prime is 728562281. The reversal of 728562204 is 402265827.

728562204 is a `hidden beast` number, since 7 + 28 + 5 + 622 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 20237839 = 728562204 / (7 + 2 + 8 + 5 + 6 + 2 + 2 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10118884 + ... + 10118955.

Almost surely, 2^728562204 is an apocalyptic number.

It is an amenable number.

728562204 is an abundant number, since it is smaller than the sum of its proper divisors (1113081236).

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

728562204 is a wasteful number, since it uses less digits than its factorization.

728562204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20237849 (or 20237844 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 728562204 is about 26991.8914491000. The cubic root of 728562204 is about 899.8198009598.

The spelling of 728562204 in words is "seven hundred twenty-eight million, five hundred sixty-two thousand, two hundred four".