344345545 has 4 divisors (see below), whose sum is σ = 413214660. Its totient is φ = 275476432.

The previous prime is 344345543. The next prime is 344345563. The reversal of 344345545 is 545543443.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 269747776 + 74597769 = 16424^2 + 8637^2 .

It is a cyclic number.

It is not a de Polignac number, because 344345545 - 2¹ = 344345543 is a prime.

It is a super-2 number, since 2×344345545² = 237147708722694050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (344345543) 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 3 ways as a sum of consecutive naturals, for example, 34434550 + ... + 34434559.

It is an arithmetic number, because the mean of its divisors is an integer number (103303665).

Almost surely, 2^344345545 is an apocalyptic number.

It is an amenable number.

344345545 is a deficient number, since it is larger than the sum of its proper divisors (68869115).

344345545 is an equidigital number, since it uses as much as digits as its factorization.

344345545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68869114.

The product of its digits is 288000, while the sum is 37.

The square root of 344345545 is about 18556.5499217931. The cubic root of 344345545 is about 700.9141424202.

Adding to 344345545 its reverse (545543443), we get a palindrome (889888988).

The spelling of 344345545 in words is "three hundred forty-four million, three hundred forty-five thousand, five hundred forty-five".