728855160 has 128 divisors (see below), whose sum is σ = 2441007360. Its totient is φ = 172569600.

The previous prime is 728855137. The next prime is 728855177. The reversal of 728855160 is 61558827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50340 + ... + 63180.

It is an arithmetic number, because the mean of its divisors is an integer number (19070370).

Almost surely, 2^728855160 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 728855160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1220503680).

728855160 is an abundant number, since it is smaller than the sum of its proper divisors (1712152200).

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

728855160 is a wasteful number, since it uses less digits than its factorization.

728855160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12909 (or 12905 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 728855160 is about 26997.3176445365. The cubic root of 728855160 is about 899.9403911138.

The spelling of 728855160 in words is "seven hundred twenty-eight million, eight hundred fifty-five thousand, one hundred sixty".