344066405 has 8 divisors (see below), whose sum is σ = 413067384. Its totient is φ = 275128000.

The previous prime is 344066389. The next prime is 344066419. The reversal of 344066405 is 504660443.

It can be written as a sum of positive squares in 4 ways, for example, as 36204289 + 307862116 = 6017^2 + 17546^2 .

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

It is not a de Polignac number, because 344066405 - 2⁴ = 344066389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2546 + ... + 26355.

It is an arithmetic number, because the mean of its divisors is an integer number (51633423).

Almost surely, 2^344066405 is an apocalyptic number.

It is an amenable number.

344066405 is a deficient number, since it is larger than the sum of its proper divisors (69000979).

344066405 is a wasteful number, since it uses less digits than its factorization.

344066405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31287.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 344066405 is about 18549.0270634338. The cubic root of 344066405 is about 700.7246950580.

The spelling of 344066405 in words is "three hundred forty-four million, sixty-six thousand, four hundred five".