2705198049 has 24 divisors (see below), whose sum is σ = 4205201832. Its totient is φ = 1669547520.

The previous prime is 2705198047. The next prime is 2705198071. The reversal of 2705198049 is 9408915072.

It can be written as a sum of positive squares in 4 ways, for example, as 16257024 + 2688941025 = 4032^2 + 51855^2 .

It is not a de Polignac number, because 2705198049 - 2¹ = 2705198047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2705197995 and 2705198013.

It is not an unprimeable number, because it can be changed into a prime (2705198047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135594 + ... + 154259.

It is an arithmetic number, because the mean of its divisors is an integer number (175216743).

Almost surely, 2^2705198049 is an apocalyptic number.

It is an amenable number.

2705198049 is a deficient number, since it is larger than the sum of its proper divisors (1500003783).

2705198049 is a wasteful number, since it uses less digits than its factorization.

2705198049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289937 (or 289934 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 2705198049 is about 52011.5184262102. The cubic root of 2705198049 is about 1393.3696774718.

The spelling of 2705198049 in words is "two billion, seven hundred five million, one hundred ninety-eight thousand, forty-nine".