2105210444 has 6 divisors (see below), whose sum is σ = 3684118284. Its totient is φ = 1052605220.

The previous prime is 2105210389. The next prime is 2105210473. The reversal of 2105210444 is 4440125012.

It is a super-2 number, since 2×2105210444² = 8863822027053354272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263151302 + ... + 263151309.

It is an arithmetic number, because the mean of its divisors is an integer number (614019714).

Almost surely, 2^2105210444 is an apocalyptic number.

It is an amenable number.

2105210444 is a deficient number, since it is larger than the sum of its proper divisors (1578907840).

2105210444 is a wasteful number, since it uses less digits than its factorization.

2105210444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526302615 (or 526302613 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2105210444 is about 45882.5723341663. The cubic root of 2105210444 is about 1281.6373991452.

Adding to 2105210444 its reverse (4440125012), we get a palindrome (6545335456).

The spelling of 2105210444 in words is "two billion, one hundred five million, two hundred ten thousand, four hundred forty-four".