2105605626 has 16 divisors (see below), whose sum is σ = 4227600384. Its totient is φ = 699137024.

The previous prime is 2105605603. The next prime is 2105605627. The reversal of 2105605626 is 6265065012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2105605627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681210 + ... + 684293.

It is an arithmetic number, because the mean of its divisors is an integer number (264225024).

Almost surely, 2^2105605626 is an apocalyptic number.

2105605626 is an abundant number, since it is smaller than the sum of its proper divisors (2121994758).

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

2105605626 is a wasteful number, since it uses less digits than its factorization.

2105605626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365765.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2105605626 is about 45886.8785820086. The cubic root of 2105605626 is about 1281.7175888073.

The spelling of 2105605626 in words is "two billion, one hundred five million, six hundred five thousand, six hundred twenty-six".