728723024 has 20 divisors (see below), whose sum is σ = 1413034560. Its totient is φ = 364068960.

The previous prime is 728722997. The next prime is 728723033. The reversal of 728723024 is 420327827.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3017 + ... + 38295.

It is an arithmetic number, because the mean of its divisors is an integer number (70651728).

Almost surely, 2^728723024 is an apocalyptic number.

It is an amenable number.

728723024 is a deficient number, since it is larger than the sum of its proper divisors (684311536).

728723024 is a wasteful number, since it uses less digits than its factorization.

728723024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36578 (or 36572 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 728723024 is about 26994.8703275270. The cubic root of 728723024 is about 899.8860036685.

The spelling of 728723024 in words is "seven hundred twenty-eight million, seven hundred twenty-three thousand, twenty-four".