210000210 has 64 divisors (see below), whose sum is σ = 581762304. Its totient is φ = 47520000.

The previous prime is 210000199. The next prime is 210000239. The reversal of 210000210 is 12000012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

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 31 ways as a sum of consecutive naturals, for example, 16260 + ... + 26160.

It is an arithmetic number, because the mean of its divisors is an integer number (9090036).

Almost surely, 2^210000210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210000210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290881152).

210000210 is an abundant number, since it is smaller than the sum of its proper divisors (371762094).

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

210000210 is a wasteful number, since it uses less digits than its factorization.

210000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10019.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 210000210 is about 14491.3839918760. The cubic root of 210000210 is about 594.3923934070.

Adding to 210000210 its reverse (12000012), we get a palindrome (222000222).

It can be divided in two parts, 2100002 and 10, that added together give a palindrome (2100012).

The spelling of 210000210 in words is "two hundred ten million, two hundred ten", and thus it is an aban number.