730163328 has 128 divisors (see below), whose sum is σ = 2109784320. Its totient is φ = 222806016.

The previous prime is 730163261. The next prime is 730163333. The reversal of 730163328 is 823361037.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

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, 240025 + ... + 243047.

It is an arithmetic number, because the mean of its divisors is an integer number (16482690).

Almost surely, 2^730163328 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 730163328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1054892160).

730163328 is an abundant number, since it is smaller than the sum of its proper divisors (1379620992).

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

730163328 is a wasteful number, since it uses less digits than its factorization.

730163328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094 (or 3082 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 730163328 is about 27021.5345234130. The cubic root of 730163328 is about 900.4784813747.

The spelling of 730163328 in words is "seven hundred thirty million, one hundred sixty-three thousand, three hundred twenty-eight".