344026385 has 8 divisors (see below), whose sum is σ = 417470760. Its totient is φ = 272128384.

The previous prime is 344026381. The next prime is 344026393. The reversal of 344026385 is 583620443.

It can be written as a sum of positive squares in 4 ways, for example, as 77651344 + 266375041 = 8812^2 + 16321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 344026385 - 2² = 344026381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (344026381) 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 in 7 ways as a sum of consecutive naturals, for example, 386102 + ... + 386991.

It is an arithmetic number, because the mean of its divisors is an integer number (52183845).

Almost surely, 2^344026385 is an apocalyptic number.

It is an amenable number.

344026385 is a deficient number, since it is larger than the sum of its proper divisors (73444375).

344026385 is an equidigital number, since it uses as much as digits as its factorization.

344026385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773187.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 344026385 is about 18547.9482692830. The cubic root of 344026385 is about 700.6975257972.

The spelling of 344026385 in words is "three hundred forty-four million, twenty-six thousand, three hundred eighty-five".