728460 has 96 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 181440.

The previous prime is 728437. The next prime is 728471. The reversal of 728460 is 64827.

728460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 10225 + ... + 10295.

It is an arithmetic number, because the mean of its divisors is an integer number (25200).

2⁷²⁸⁴⁶⁰ 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 728460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1209600).

728460 is an abundant number, since it is smaller than the sum of its proper divisors (1690740).

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

728460 is a wasteful number, since it uses less digits than its factorization.

728460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 728460 is about 853.4986818970. The cubic root of 728460 is about 89.9777722886.

The spelling of 728460 in words is "seven hundred twenty-eight thousand, four hundred sixty".