728481488 has 40 divisors (see below), whose sum is σ = 1629062400. Its totient is φ = 309110400.

The previous prime is 728481463. The next prime is 728481497. The reversal of 728481488 is 884184827.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20888 + ... + 43511.

It is an arithmetic number, because the mean of its divisors is an integer number (40726560).

Almost surely, 2^728481488 is an apocalyptic number.

It is an amenable number.

728481488 is an abundant number, since it is smaller than the sum of its proper divisors (900580912).

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

728481488 is a wasteful number, since it uses less digits than its factorization.

728481488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64515 (or 64509 counting only the distinct ones).

The product of its digits is 917504, while the sum is 50.

The square root of 728481488 is about 26990.3962179143. The cubic root of 728481488 is about 899.7865699664.

The spelling of 728481488 in words is "seven hundred twenty-eight million, four hundred eighty-one thousand, four hundred eighty-eight".