2105404239 has 8 divisors (see below), whose sum is σ = 2808012592. Its totient is φ = 1403199360.

The previous prime is 2105404211. The next prime is 2105404267. The reversal of 2105404239 is 9324045012.

It is an interprime number because it is at equal distance from previous prime (2105404211) and next prime (2105404267).

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

It is not a de Polignac number, because 2105404239 - 2¹¹ = 2105402191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105404139) by changing a digit.

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, 88474 + ... + 109719.

It is an arithmetic number, because the mean of its divisors is an integer number (351001574).

Almost surely, 2^2105404239 is an apocalyptic number.

2105404239 is a deficient number, since it is larger than the sum of its proper divisors (702608353).

2105404239 is a wasteful number, since it uses less digits than its factorization.

2105404239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201737.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2105404239 is about 45884.6841440584. The cubic root of 2105404239 is about 1281.6767249522.

The spelling of 2105404239 in words is "two billion, one hundred five million, four hundred four thousand, two hundred thirty-nine".