440340211 has 2 divisors, whose sum is σ = 440340212. Its totient is φ = 440340210.

The previous prime is 440340209. The next prime is 440340217. The reversal of 440340211 is 112043044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440340211 - 2¹ = 440340209 is a prime.

Together with 440340209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (440340217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220170105 + 220170106.

It is an arithmetic number, because the mean of its divisors is an integer number (220170106).

Almost surely, 2^440340211 is an apocalyptic number.

440340211 is a deficient number, since it is larger than the sum of its proper divisors (1).

440340211 is an equidigital number, since it uses as much as digits as its factorization.

440340211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 440340211 is about 20984.2848579598. The cubic root of 440340211 is about 760.7864729012.

Adding to 440340211 its reverse (112043044), we get a palindrome (552383255).

The spelling of 440340211 in words is "four hundred forty million, three hundred forty thousand, two hundred eleven".