2102440349 has 2 divisors, whose sum is σ = 2102440350. Its totient is φ = 2102440348.

The previous prime is 2102440343. The next prime is 2102440391. The reversal of 2102440349 is 9430442012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2036716900 + 65723449 = 45130^2 + 8107^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102440349 - 2²⁴ = 2085663133 is a prime.

It is a super-2 number, since 2×2102440349² = 8840510842206483602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102440343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051220174 + 1051220175.

It is an arithmetic number, because the mean of its divisors is an integer number (1051220175).

Almost surely, 2^2102440349 is an apocalyptic number.

It is an amenable number.

2102440349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102440349 is an equidigital number, since it uses as much as digits as its factorization.

2102440349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2102440349 is about 45852.3756091219. The cubic root of 2102440349 is about 1281.0750142497.

The spelling of 2102440349 in words is "two billion, one hundred two million, four hundred forty thousand, three hundred forty-nine".