340444211 has 2 divisors, whose sum is σ = 340444212. Its totient is φ = 340444210.

The previous prime is 340444207. The next prime is 340444213. The reversal of 340444211 is 112444043.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340444211 - 2² = 340444207 is a prime.

It is a Sophie Germain prime.

Together with 340444213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (340444213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170222105 + 170222106.

It is an arithmetic number, because the mean of its divisors is an integer number (170222106).

Almost surely, 2^340444211 is an apocalyptic number.

340444211 is a deficient number, since it is larger than the sum of its proper divisors (1).

340444211 is an equidigital number, since it uses as much as digits as its factorization.

340444211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 340444211 is about 18451.1303447783. The cubic root of 340444211 is about 698.2570317172.

Adding to 340444211 its reverse (112444043), we get a palindrome (452888254).

The spelling of 340444211 in words is "three hundred forty million, four hundred forty-four thousand, two hundred eleven".