2130216 has 32 divisors (see below), whose sum is σ = 5810400. Its totient is φ = 645440.

The previous prime is 2130209. The next prime is 2130239. The reversal of 2130216 is 6120312.

It is a junction number, because it is equal to n+sod(n) for n = 2130195 and 2130204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3771 + ... + 4298.

It is an arithmetic number, because the mean of its divisors is an integer number (181575).

2^2130216 is an apocalyptic number.

It is an amenable number.

2130216 is an abundant number, since it is smaller than the sum of its proper divisors (3680184).

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

2130216 is a wasteful number, since it uses less digits than its factorization.

2130216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8089 (or 8085 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2130216 is about 1459.5259504373. The cubic root of 2130216 is about 128.6691842092.

Adding to 2130216 its reverse (6120312), we get a palindrome (8250528).

It can be divided in two parts, 2130 and 216, that added together give a triangular number (2346 = T₆₈).

The spelling of 2130216 in words is "two million, one hundred thirty thousand, two hundred sixteen".