210252216 has 32 divisors (see below), whose sum is σ = 528134400. Its totient is φ = 69750240.

The previous prime is 210252187. The next prime is 210252221. The reversal of 210252216 is 612252012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210252192 and 210252201.

It is a congruent number.

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, 15696 + ... + 25823.

It is an arithmetic number, because the mean of its divisors is an integer number (16504200).

Almost surely, 2^210252216 is an apocalyptic number.

It is an amenable number.

210252216 is an abundant number, since it is smaller than the sum of its proper divisors (317882184).

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

210252216 is a wasteful number, since it uses less digits than its factorization.

210252216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41739 (or 41735 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 210252216 is about 14500.0764135918. The cubic root of 210252216 is about 594.6300607437.

The spelling of 210252216 in words is "two hundred ten million, two hundred fifty-two thousand, two hundred sixteen".