210040210 has 16 divisors (see below), whose sum is σ = 378706176. Its totient is φ = 83875248.

The previous prime is 210040169. The next prime is 210040213. The reversal of 210040210 is 12040012.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (210040213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11232 + ... + 23371.

It is an arithmetic number, because the mean of its divisors is an integer number (23669136).

Almost surely, 2^210040210 is an apocalyptic number.

210040210 is a deficient number, since it is larger than the sum of its proper divisors (168665966).

210040210 is a wasteful number, since it uses less digits than its factorization.

210040210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35217.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 210040210 is about 14492.7640565904. The cubic root of 210040210 is about 594.4301301729.

Adding to 210040210 its reverse (12040012), we get a palindrome (222080222).

The spelling of 210040210 in words is "two hundred ten million, forty thousand, two hundred ten".