2041630649 has 4 divisors (see below), whose sum is σ = 2080152036. Its totient is φ = 2003109264.

The previous prime is 2041630559. The next prime is 2041630651. The reversal of 2041630649 is 9460361402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 549199225 + 1492431424 = 23435^2 + 38632^2 .

It is a cyclic number.

It is not a de Polignac number, because 2041630649 - 2²⁰ = 2040582073 is a prime.

It is a super-2 number, since 2×2041630649² = 8336511413872322402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2041630699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19260614 + ... + 19260719.

It is an arithmetic number, because the mean of its divisors is an integer number (520038009).

Almost surely, 2^2041630649 is an apocalyptic number.

It is an amenable number.

2041630649 is a deficient number, since it is larger than the sum of its proper divisors (38521387).

2041630649 is an equidigital number, since it uses as much as digits as its factorization.

2041630649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38521386.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 2041630649 is about 45184.4071445006. The cubic root of 2041630649 is about 1268.6029751445.

The spelling of 2041630649 in words is "two billion, forty-one million, six hundred thirty thousand, six hundred forty-nine".