1841668349 has 2 divisors, whose sum is σ = 1841668350. Its totient is φ = 1841668348.

The previous prime is 1841668321. The next prime is 1841668357. The reversal of 1841668349 is 9438661481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1044453124 + 797215225 = 32318^2 + 28235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1841668349 - 2²⁸ = 1573232893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1841668297 and 1841668306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1841668399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 920834174 + 920834175.

It is an arithmetic number, because the mean of its divisors is an integer number (920834175).

Almost surely, 2^1841668349 is an apocalyptic number.

It is an amenable number.

1841668349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1841668349 is an equidigital number, since it uses as much as digits as its factorization.

1841668349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 50.

The square root of 1841668349 is about 42914.6635661984. The cubic root of 1841668349 is about 1225.7553800622.

The spelling of 1841668349 in words is "one billion, eight hundred forty-one million, six hundred sixty-eight thousand, three hundred forty-nine".