730597728 has 96 divisors (see below), whose sum is σ = 2307191040. Its totient is φ = 197752320.

The previous prime is 730597727. The next prime is 730597733. The reversal of 730597728 is 827795037.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730597723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15843 + ... + 41378.

It is an arithmetic number, because the mean of its divisors is an integer number (24033240).

Almost surely, 2^730597728 is an apocalyptic number.

It is an amenable number.

730597728 is an abundant number, since it is smaller than the sum of its proper divisors (1576593312).

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

730597728 is a wasteful number, since it uses less digits than its factorization.

730597728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57260 (or 57252 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 48.

The square root of 730597728 is about 27029.5713617512. The cubic root of 730597728 is about 900.6570214765.

The spelling of 730597728 in words is "seven hundred thirty million, five hundred ninety-seven thousand, seven hundred twenty-eight".