728413732 has 24 divisors (see below), whose sum is σ = 1290768192. Its totient is φ = 359652000.

The previous prime is 728413723. The next prime is 728413759. The reversal of 728413732 is 237314827.

728413732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 728413691 and 728413700.

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, 101007 + ... + 107977.

It is an arithmetic number, because the mean of its divisors is an integer number (53782008).

Almost surely, 2^728413732 is an apocalyptic number.

It is an amenable number.

728413732 is a deficient number, since it is larger than the sum of its proper divisors (562354460).

728413732 is a wasteful number, since it uses less digits than its factorization.

728413732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7299 (or 7297 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 728413732 is about 26989.1410015213. The cubic root of 728413732 is about 899.7586727445.

The spelling of 728413732 in words is "seven hundred twenty-eight million, four hundred thirteen thousand, seven hundred thirty-two".