2043678349 has 2 divisors, whose sum is σ = 2043678350. Its totient is φ = 2043678348.

The previous prime is 2043678331. The next prime is 2043678359. The reversal of 2043678349 is 9438763402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1904013225 + 139665124 = 43635^2 + 11818^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043678349 - 2⁹ = 2043677837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2043678299 and 2043678308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043678359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021839174 + 1021839175.

It is an arithmetic number, because the mean of its divisors is an integer number (1021839175).

Almost surely, 2^2043678349 is an apocalyptic number.

It is an amenable number.

2043678349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043678349 is an equidigital number, since it uses as much as digits as its factorization.

2043678349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 2043678349 is about 45207.0608312463. The cubic root of 2043678349 is about 1269.0269581858.

The spelling of 2043678349 in words is "two billion, forty-three million, six hundred seventy-eight thousand, three hundred forty-nine".