30730222 has 8 divisors (see below), whose sum is σ = 46215000. Its totient is φ = 15325224.

The previous prime is 30730213. The next prime is 30730223. The reversal of 30730222 is 22203703.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30730222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30730223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18972 + ... + 20527.

It is an arithmetic number, because the mean of its divisors is an integer number (5776875).

Almost surely, 2^30730222 is an apocalyptic number.

30730222 is a deficient number, since it is larger than the sum of its proper divisors (15484778).

30730222 is a wasteful number, since it uses less digits than its factorization.

30730222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39890.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 30730222 is about 5543.4846441566. The cubic root of 30730222 is about 313.2241450949.

Adding to 30730222 its reverse (22203703), we get a palindrome (52933925).

The spelling of 30730222 in words is "thirty million, seven hundred thirty thousand, two hundred twenty-two".