728304804 has 24 divisors (see below), whose sum is σ = 1888197920. Its totient is φ = 242768232.

The previous prime is 728304799. The next prime is 728304833. The reversal of 728304804 is 408403827.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 3371674 + ... + 3371889.

Almost surely, 2^728304804 is an apocalyptic number.

It is an amenable number.

728304804 is an abundant number, since it is smaller than the sum of its proper divisors (1159893116).

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

728304804 is a wasteful number, since it uses less digits than its factorization.

728304804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6743576 (or 6743568 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 728304804 is about 26987.1229292787. The cubic root of 728304804 is about 899.7138201220.

The spelling of 728304804 in words is "seven hundred twenty-eight million, three hundred four thousand, eight hundred four".