2105434074 has 16 divisors (see below), whose sum is σ = 4212508608. Its totient is φ = 701537952.

The previous prime is 2105434049. The next prime is 2105434109. The reversal of 2105434074 is 4704345012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51342 + ... + 82745.

It is an arithmetic number, because the mean of its divisors is an integer number (263281788).

Almost surely, 2^2105434074 is an apocalyptic number.

2105434074 is an abundant number, since it is smaller than the sum of its proper divisors (2107074534).

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

2105434074 is a wasteful number, since it uses less digits than its factorization.

2105434074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136709.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 2105434074 is about 45885.0092513884. The cubic root of 2105434074 is about 1281.6827789985.

Adding to 2105434074 its reverse (4704345012), we get a palindrome (6809779086).

The spelling of 2105434074 in words is "two billion, one hundred five million, four hundred thirty-four thousand, seventy-four".