728042304 has 112 divisors (see below), whose sum is σ = 2212116480. Its totient is φ = 208995840.

The previous prime is 728042281. The next prime is 728042309. The reversal of 728042304 is 403240827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728042309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31057 + ... + 49199.

It is an arithmetic number, because the mean of its divisors is an integer number (19751040).

Almost surely, 2^728042304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728042304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1106058240).

728042304 is an abundant number, since it is smaller than the sum of its proper divisors (1484074176).

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

728042304 is a wasteful number, since it uses less digits than its factorization.

728042304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18188 (or 18178 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 728042304 is about 26982.2590603530. The cubic root of 728042304 is about 899.6057137098.

The spelling of 728042304 in words is "seven hundred twenty-eight million, forty-two thousand, three hundred four".