728325270 has 80 divisors (see below), whose sum is σ = 1980586080. Its totient is φ = 192018816.

The previous prime is 728325263. The next prime is 728325281. The reversal of 728325270 is 72523827.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 67039 + ... + 77141.

It is an arithmetic number, because the mean of its divisors is an integer number (24757326).

Almost surely, 2^728325270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728325270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (990293040).

728325270 is an abundant number, since it is smaller than the sum of its proper divisors (1252260810).

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

728325270 is a wasteful number, since it uses less digits than its factorization.

728325270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10211 (or 10202 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 728325270 is about 26987.5021074571. The cubic root of 728325270 is about 899.7222476239.

The spelling of 728325270 in words is "seven hundred twenty-eight million, three hundred twenty-five thousand, two hundred seventy".