344422649 has 2 divisors, whose sum is σ = 344422650. Its totient is φ = 344422648.

The previous prime is 344422607. The next prime is 344422651. The reversal of 344422649 is 946224443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 274399225 + 70023424 = 16565^2 + 8368^2 .

It is an emirp because it is prime and its reverse (946224443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 344422649 - 2¹² = 344418553 is a prime.

It is a super-2 number, since 2×344422649² = 237253922288354402, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 344422651, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (344422049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172211324 + 172211325.

It is an arithmetic number, because the mean of its divisors is an integer number (172211325).

Almost surely, 2^344422649 is an apocalyptic number.

It is an amenable number.

344422649 is a deficient number, since it is larger than the sum of its proper divisors (1).

344422649 is an equidigital number, since it uses as much as digits as its factorization.

344422649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 38.

The square root of 344422649 is about 18558.6273468702. The cubic root of 344422649 is about 700.9664534894.

The spelling of 344422649 in words is "three hundred forty-four million, four hundred twenty-two thousand, six hundred forty-nine".