210530330 has 16 divisors (see below), whose sum is σ = 383521824. Its totient is φ = 83197200.

The previous prime is 210530297. The next prime is 210530347. The reversal of 210530330 is 33035012.

210530330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 210530299 and 210530308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125996 + ... + 127655.

It is an arithmetic number, because the mean of its divisors is an integer number (23970114).

Almost surely, 2^210530330 is an apocalyptic number.

210530330 is a deficient number, since it is larger than the sum of its proper divisors (172991494).

210530330 is a wasteful number, since it uses less digits than its factorization.

210530330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253741.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 210530330 is about 14509.6633317248. The cubic root of 210530330 is about 594.8921302462.

Adding to 210530330 its reverse (33035012), we get a palindrome (243565342).

The spelling of 210530330 in words is "two hundred ten million, five hundred thirty thousand, three hundred thirty".