2105404342 has 8 divisors (see below), whose sum is σ = 3159056232. Its totient is φ = 1052385600.

The previous prime is 2105404271. The next prime is 2105404363. The reversal of 2105404342 is 2434045012.

It is a happy number.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 149884 + ... + 163327.

It is an arithmetic number, because the mean of its divisors is an integer number (394882029).

Almost surely, 2^2105404342 is an apocalyptic number.

2105404342 is a deficient number, since it is larger than the sum of its proper divisors (1053651890).

2105404342 is a wasteful number, since it uses less digits than its factorization.

2105404342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316574.

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

The square root of 2105404342 is about 45884.6852664372. The cubic root of 2105404342 is about 1281.6767458528.

Adding to 2105404342 its reverse (2434045012), we get a palindrome (4539449354).

The spelling of 2105404342 in words is "two billion, one hundred five million, four hundred four thousand, three hundred forty-two".