2105403443 has 16 divisors (see below), whose sum is σ = 2474830176. Its totient is φ = 1765808640.

The previous prime is 2105403427. The next prime is 2105403449. The reversal of 2105403443 is 3443045012.

It is a cyclic number.

It is not a de Polignac number, because 2105403443 - 2⁴ = 2105403427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105403449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402521 + ... + 407717.

It is an arithmetic number, because the mean of its divisors is an integer number (154676886).

Almost surely, 2^2105403443 is an apocalyptic number.

2105403443 is a deficient number, since it is larger than the sum of its proper divisors (369426733).

2105403443 is a wasteful number, since it uses less digits than its factorization.

2105403443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8054.

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

The square root of 2105403443 is about 45884.6754701393. The cubic root of 2105403443 is about 1281.6765634290.

Adding to 2105403443 its reverse (3443045012), we get a palindrome (5548448455).

The spelling of 2105403443 in words is "two billion, one hundred five million, four hundred three thousand, four hundred forty-three".