2105043434 has 8 divisors (see below), whose sum is σ = 3400454820. Its totient is φ = 971558496.

The previous prime is 2105043389. The next prime is 2105043469. The reversal of 2105043434 is 4343405012.

It can be written as a sum of positive squares in 2 ways, for example, as 1932042025 + 173001409 = 43955^2 + 13153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 80963209 = 2105043434 / (2 + 1 + 0 + 5 + 0 + 4 + 3 + 4 + 3 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40481579 + ... + 40481630.

Almost surely, 2^2105043434 is an apocalyptic number.

2105043434 is a deficient number, since it is larger than the sum of its proper divisors (1295411386).

2105043434 is a wasteful number, since it uses less digits than its factorization.

2105043434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80963224.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 2105043434 is about 45880.7523260027. The cubic root of 2105043434 is about 1281.6035067421.

Adding to 2105043434 its reverse (4343405012), we get a palindrome (6448448446).

The spelling of 2105043434 in words is "two billion, one hundred five million, forty-three thousand, four hundred thirty-four".