2105403442 has 16 divisors (see below), whose sum is σ = 3185338464. Its totient is φ = 1043640000.

The previous prime is 2105403427. The next prime is 2105403449. The reversal of 2105403442 is 2443045012.

It is a happy number.

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

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 7 ways as a sum of consecutive naturals, for example, 311317 + ... + 318007.

It is an arithmetic number, because the mean of its divisors is an integer number (199083654).

Almost surely, 2^2105403442 is an apocalyptic number.

2105403442 is a deficient number, since it is larger than the sum of its proper divisors (1079935022).

2105403442 is a wasteful number, since it uses less digits than its factorization.

2105403442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8025.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2105403442 is about 45884.6754592424. The cubic root of 2105403442 is about 1281.6765632261.

Adding to 2105403442 its reverse (2443045012), we get a palindrome (4548448454).

The spelling of 2105403442 in words is "two billion, one hundred five million, four hundred three thousand, four hundred forty-two".