2104631405 has 8 divisors (see below), whose sum is σ = 2548728600. Its totient is φ = 1668257856.

The previous prime is 2104631369. The next prime is 2104631429. The reversal of 2104631405 is 5041364012.

It can be written as a sum of positive squares in 4 ways, for example, as 1092500809 + 1012130596 = 33053^2 + 31814^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2104631405 - 2⁶ = 2104631341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1930310 + ... + 1931399.

It is an arithmetic number, because the mean of its divisors is an integer number (318591075).

Almost surely, 2^2104631405 is an apocalyptic number.

It is an amenable number.

2104631405 is a deficient number, since it is larger than the sum of its proper divisors (444097195).

2104631405 is a wasteful number, since it uses less digits than its factorization.

2104631405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3861823.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2104631405 is about 45876.2618900015. The cubic root of 2104631405 is about 1281.5198834054.

Adding to 2104631405 its reverse (5041364012), we get a palindrome (7145995417).

The spelling of 2104631405 in words is "two billion, one hundred four million, six hundred thirty-one thousand, four hundred five".