730218 has 16 divisors (see below), whose sum is σ = 1546560. Its totient is φ = 229056.

The previous prime is 730217. The next prime is 730237. The reversal of 730218 is 812037.

It is a junction number, because it is equal to n+sod(n) for n = 730194 and 730203.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 730218.

It is not an unprimeable number, because it can be changed into a prime (730217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3478 + ... + 3681.

It is an arithmetic number, because the mean of its divisors is an integer number (96660).

2⁷³⁰²¹⁸ is an apocalyptic number.

730218 is an abundant number, since it is smaller than the sum of its proper divisors (816342).

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

730218 is a wasteful number, since it uses less digits than its factorization.

730218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7181.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 730218 is about 854.5279398592. The cubic root of 730218 is about 90.0500955676.

The spelling of 730218 in words is "seven hundred thirty thousand, two hundred eighteen".