2106210 has 16 divisors (see below), whose sum is σ = 5054976. Its totient is φ = 561648.

The previous prime is 2106199. The next prime is 2106217. The reversal of 2106210 is 126012.

It is a super-2 number, since 2×2106210² = 8872241128200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2106217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35074 + ... + 35133.

It is an arithmetic number, because the mean of its divisors is an integer number (315936).

2^2106210 is an apocalyptic number.

2106210 is an abundant number, since it is smaller than the sum of its proper divisors (2948766).

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

2106210 is a wasteful number, since it uses less digits than its factorization.

2106210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70217.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2106210 is about 1451.2787464853. The cubic root of 2106210 is about 128.1840207952.

The spelling of 2106210 in words is "two million, one hundred six thousand, two hundred ten".