728831180 has 96 divisors (see below), whose sum is σ = 1959939072. Its totient is φ = 221011200.

The previous prime is 728831179. The next prime is 728831237. The reversal of 728831180 is 81138827.

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, 50585 + ... + 63375.

It is an arithmetic number, because the mean of its divisors is an integer number (20416032).

Almost surely, 2^728831180 is an apocalyptic number.

728831180 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728831180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (979969536).

728831180 is an abundant number, since it is smaller than the sum of its proper divisors (1231107892).

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

728831180 is a wasteful number, since it uses less digits than its factorization.

728831180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12855 (or 12853 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 728831180 is about 26996.8735226878. The cubic root of 728831180 is about 899.9305213855.

The spelling of 728831180 in words is "seven hundred twenty-eight million, eight hundred thirty-one thousand, one hundred eighty".