210230000 has 50 divisors (see below), whose sum is σ = 509012064. Its totient is φ = 84088000.

The previous prime is 210229991. The next prime is 210230011. The reversal of 210230000 is 32012.

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 210230000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 512 + ... + 20511.

Almost surely, 2^210230000 is an apocalyptic number.

210230000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254506032).

210230000 is an abundant number, since it is smaller than the sum of its proper divisors (298782064).

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

210230000 is an equidigital number, since it uses as much as digits as its factorization.

210230000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21051 (or 21030 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 210230000 is about 14499.3103284260. The cubic root of 210230000 is about 594.6091164274.

Adding to 210230000 its reverse (32012), we get a palindrome (210262012).

The spelling of 210230000 in words is "two hundred ten million, two hundred thirty thousand".