730222 has 8 divisors (see below), whose sum is σ = 1100736. Its totient is φ = 363312.

The previous prime is 730217. The next prime is 730237. The reversal of 730222 is 222037.

It is a happy number.

730222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 730196 and 730205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318 + ... + 1249.

It is an arithmetic number, because the mean of its divisors is an integer number (137592).

2⁷³⁰²²² is an apocalyptic number.

730222 is a deficient number, since it is larger than the sum of its proper divisors (370514).

730222 is a wasteful number, since it uses less digits than its factorization.

730222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 730222 is about 854.5302803295. The cubic root of 730222 is about 90.0502599932.

Adding to 730222 its reverse (222037), we get a palindrome (952259).

The spelling of 730222 in words is "seven hundred thirty thousand, two hundred twenty-two".