730668 has 12 divisors (see below), whose sum is σ = 1704920. Its totient is φ = 243552.

The previous prime is 730663. The next prime is 730669. The reversal of 730668 is 866037.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (730663) by changing a digit.

730668 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 in 3 ways as a sum of consecutive naturals, for example, 30433 + ... + 30456.

2⁷³⁰⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

730668 is an abundant number, since it is smaller than the sum of its proper divisors (974252).

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

730668 is a wasteful number, since it uses less digits than its factorization.

730668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60896 (or 60894 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 730668 is about 854.7912025752. The cubic root of 730668 is about 90.0685896893.

The spelling of 730668 in words is "seven hundred thirty thousand, six hundred sixty-eight".