344020313 has 16 divisors (see below), whose sum is σ = 448318080. Its totient is φ = 256179456.

The previous prime is 344020283. The next prime is 344020351. The reversal of 344020313 is 313020443.

It is not a de Polignac number, because 344020313 - 2⁶ = 344020249 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (344020363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109643 + ... + 112736.

It is an arithmetic number, because the mean of its divisors is an integer number (28019880).

Almost surely, 2^344020313 is an apocalyptic number.

It is an amenable number.

344020313 is a deficient number, since it is larger than the sum of its proper divisors (104297767).

344020313 is a wasteful number, since it uses less digits than its factorization.

344020313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222416.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 344020313 is about 18547.7845846883. The cubic root of 344020313 is about 700.6934033805.

Adding to 344020313 its reverse (313020443), we get a palindrome (657040756).

The spelling of 344020313 in words is "three hundred forty-four million, twenty thousand, three hundred thirteen".