2100404434 has 16 divisors (see below), whose sum is σ = 3339770616. Its totient is φ = 987289600.

The previous prime is 2100404401. The next prime is 2100404443. The reversal of 2100404434 is 4344040012.

It can be written as a sum of positive squares in 4 ways, for example, as 1274704209 + 825700225 = 35703^2 + 28735^2 .

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, 5107 + ... + 65014.

Almost surely, 2^2100404434 is an apocalyptic number.

2100404434 is a deficient number, since it is larger than the sum of its proper divisors (1239366182).

2100404434 is a wasteful number, since it uses less digits than its factorization.

2100404434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71021.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2100404434 is about 45830.1694738302. The cubic root of 2100404434 is about 1280.6613676081.

Adding to 2100404434 its reverse (4344040012), we get a palindrome (6444444446).

The spelling of 2100404434 in words is "two billion, one hundred million, four hundred four thousand, four hundred thirty-four".