728903232000 has 960 divisors, whose sum is σ = 2853561110400. Its totient is φ = 182908108800.

The previous prime is 728903231977. The next prime is 728903232017. The reversal of 728903232000 is 232309827.

It is a tau number, because it is divible by the number of its divisors (960).

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4891967926 + ... + 4891968074.

It is an arithmetic number, because the mean of its divisors is an integer number (2972459490).

Almost surely, 2^728903232000 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 728903232000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1426780555200).

728903232000 is an abundant number, since it is smaller than the sum of its proper divisors (2124657878400).

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

728903232000 is an equidigital number, since it uses as much as digits as its factorization.

728903232000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 728903232000 in words is "seven hundred twenty-eight billion, nine hundred three million, two hundred thirty-two thousand".