2112604405 has 16 divisors (see below), whose sum is σ = 2595852864. Its totient is φ = 1649652480.

The previous prime is 2112604393. The next prime is 2112604421. The reversal of 2112604405 is 5044062112.

It is a happy number.

It is not a de Polignac number, because 2112604405 - 2²⁷ = 1978386677 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 2112604405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462342 + ... + 466888.

It is an arithmetic number, because the mean of its divisors is an integer number (162240804).

Almost surely, 2^2112604405 is an apocalyptic number.

It is an amenable number.

2112604405 is a deficient number, since it is larger than the sum of its proper divisors (483248459).

2112604405 is a wasteful number, since it uses less digits than its factorization.

2112604405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6756.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2112604405 is about 45963.0765397618. The cubic root of 2112604405 is about 1283.1361098319.

Adding to 2112604405 its reverse (5044062112), we get a palindrome (7156666517).

The spelling of 2112604405 in words is "two billion, one hundred twelve million, six hundred four thousand, four hundred five".