2210845 has 32 divisors (see below), whose sum is σ = 3370752. Its totient is φ = 1354752.

The previous prime is 2210837. The next prime is 2210851. The reversal of 2210845 is 5480122.

2210845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2210845 - 2³ = 2210837 is a prime.

It is a super-2 number, since 2×2210845² = 9775671228050, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 19509 + ... + 19621.

It is an arithmetic number, because the mean of its divisors is an integer number (105336).

2^2210845 is an apocalyptic number.

It is an amenable number.

2210845 is a deficient number, since it is larger than the sum of its proper divisors (1159907).

2210845 is a wasteful number, since it uses less digits than its factorization.

2210845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2210845 is about 1486.8910518259. The cubic root of 2210845 is about 130.2725052998.

Adding to 2210845 its reverse (5480122), we get a palindrome (7690967).

The spelling of 2210845 in words is "two million, two hundred ten thousand, eight hundred forty-five".