344224399 has 2 divisors, whose sum is σ = 344224400. Its totient is φ = 344224398.

The previous prime is 344224373. The next prime is 344224411. The reversal of 344224399 is 993422443.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 344224399 - 2⁵ = 344224367 is a prime.

It is a super-2 number, since 2×344224399² = 236980873733822402, which contains 22 as substring.

It is equal to p_18509836 and since 344224399 and 18509836 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344224319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172112199 + 172112200.

It is an arithmetic number, because the mean of its divisors is an integer number (172112200).

Almost surely, 2^344224399 is an apocalyptic number.

344224399 is a deficient number, since it is larger than the sum of its proper divisors (1).

344224399 is an equidigital number, since it uses as much as digits as its factorization.

344224399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 40.

The square root of 344224399 is about 18553.2853963927. The cubic root of 344224399 is about 700.8319353603.

The spelling of 344224399 in words is "three hundred forty-four million, two hundred twenty-four thousand, three hundred ninety-nine".