730216 has 16 divisors (see below), whose sum is σ = 1384740. Its totient is φ = 360960.

The previous prime is 730199. The next prime is 730217. The reversal of 730216 is 612037.

It can be written as a sum of positive squares in 2 ways, for example, as 729316 + 900 = 854^2 + 30^2 .

It is a junction number, because it is equal to n+sod(n) for n = 730193 and 730202.

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 3 ways as a sum of consecutive naturals, for example, 306 + ... + 1246.

2⁷³⁰²¹⁶ is an apocalyptic number.

It is an amenable number.

730216 is a deficient number, since it is larger than the sum of its proper divisors (654524).

730216 is a wasteful number, since it uses less digits than its factorization.

730216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 730216 is about 854.5267696216. The cubic root of 730216 is about 90.0500133545.

It can be divided in two parts, 730 and 216, that added together give a triangular number (946 = T₄₃).

The spelling of 730216 in words is "seven hundred thirty thousand, two hundred sixteen".