2218000349 has 2 divisors, whose sum is σ = 2218000350. Its totient is φ = 2218000348.

The previous prime is 2218000333. The next prime is 2218000403. The reversal of 2218000349 is 9430008122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1366411225 + 851589124 = 36965^2 + 29182^2 .

It is a cyclic number.

It is not a de Polignac number, because 2218000349 - 2⁴ = 2218000333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2218002349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109000174 + 1109000175.

It is an arithmetic number, because the mean of its divisors is an integer number (1109000175).

Almost surely, 2^2218000349 is an apocalyptic number.

It is an amenable number.

2218000349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2218000349 is an equidigital number, since it uses as much as digits as its factorization.

2218000349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2218000349 is about 47095.6510624920. The cubic root of 2218000349 is about 1304.1289527476.

The spelling of 2218000349 in words is "two billion, two hundred eighteen million, three hundred forty-nine", and thus it is an aban number.