2106322405 has 32 divisors (see below), whose sum is σ = 2896570368. Its totient is φ = 1455432000.

The previous prime is 2106322391. The next prime is 2106322417. The reversal of 2106322405 is 5042236012.

It is not a de Polignac number, because 2106322405 - 2¹⁷ = 2106191333 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2106322405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185502 + ... + 196528.

It is an arithmetic number, because the mean of its divisors is an integer number (90517824).

Almost surely, 2^2106322405 is an apocalyptic number.

It is an amenable number.

2106322405 is a deficient number, since it is larger than the sum of its proper divisors (790247963).

2106322405 is a wasteful number, since it uses less digits than its factorization.

2106322405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11217.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2106322405 is about 45894.6882002700. The cubic root of 2106322405 is about 1281.8630107883.

Adding to 2106322405 its reverse (5042236012), we get a palindrome (7148558417).

The spelling of 2106322405 in words is "two billion, one hundred six million, three hundred twenty-two thousand, four hundred five".