344021269 has 2 divisors, whose sum is σ = 344021270. Its totient is φ = 344021268.

The previous prime is 344021261. The next prime is 344021311. The reversal of 344021269 is 962120443.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220522500 + 123498769 = 14850^2 + 11113^2 .

It is a cyclic number.

It is not a de Polignac number, because 344021269 - 2³ = 344021261 is a prime.

It is a super-2 number, since 2×344021269² = 236701267048740722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 344021269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344021261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172010634 + 172010635.

It is an arithmetic number, because the mean of its divisors is an integer number (172010635).

Almost surely, 2^344021269 is an apocalyptic number.

It is an amenable number.

344021269 is a deficient number, since it is larger than the sum of its proper divisors (1).

344021269 is an equidigital number, since it uses as much as digits as its factorization.

344021269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 344021269 is about 18547.8103559423. The cubic root of 344021269 is about 700.6940524335.

The spelling of 344021269 in words is "three hundred forty-four million, twenty-one thousand, two hundred sixty-nine".