730328 has 8 divisors (see below), whose sum is σ = 1369380. Its totient is φ = 365160.

The previous prime is 730321. The next prime is 730339. The reversal of 730328 is 823037.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730321) by changing a digit.

730328 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45638 + ... + 45653.

2⁷³⁰³²⁸ is an apocalyptic number.

It is an amenable number.

730328 is a deficient number, since it is larger than the sum of its proper divisors (639052).

730328 is a wasteful number, since it uses less digits than its factorization.

730328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91297 (or 91293 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 730328 is about 854.5923004568. The cubic root of 730328 is about 90.0546170544.

The spelling of 730328 in words is "seven hundred thirty thousand, three hundred twenty-eight".