344040425 has 6 divisors (see below), whose sum is σ = 426610158. Its totient is φ = 275232320.

The previous prime is 344040421. The next prime is 344040443. The reversal of 344040425 is 524040443.

It can be written as a sum of positive squares in 3 ways, for example, as 83411689 + 260628736 = 9133^2 + 16144^2 .

It is not a de Polignac number, because 344040425 - 2² = 344040421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 344040394 and 344040403.

It is not an unprimeable number, because it can be changed into a prime (344040421) 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 in 5 ways as a sum of consecutive naturals, for example, 6880784 + ... + 6880833.

It is an arithmetic number, because the mean of its divisors is an integer number (71101693).

Almost surely, 2^344040425 is an apocalyptic number.

It is an amenable number.

344040425 is a deficient number, since it is larger than the sum of its proper divisors (82569733).

344040425 is a wasteful number, since it uses less digits than its factorization.

344040425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13761627 (or 13761622 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 344040425 is about 18548.3267439411. The cubic root of 344040425 is about 700.7070576819.

Adding to 344040425 its reverse (524040443), we get a palindrome (868080868).

The spelling of 344040425 in words is "three hundred forty-four million, forty thousand, four hundred twenty-five".