344020013 has 4 divisors (see below), whose sum is σ = 346728960. Its totient is φ = 341311068.

The previous prime is 344019997. The next prime is 344020021. The reversal of 344020013 is 310020443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 344020013 - 2⁴ = 344019997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 344019973 and 344020000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344020513) 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 3 ways as a sum of consecutive naturals, for example, 1354283 + ... + 1354536.

It is an arithmetic number, because the mean of its divisors is an integer number (86682240).

Almost surely, 2^344020013 is an apocalyptic number.

It is an amenable number.

344020013 is a deficient number, since it is larger than the sum of its proper divisors (2708947).

344020013 is a wasteful number, since it uses less digits than its factorization.

344020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708946.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 344020013 is about 18547.7764974673. The cubic root of 344020013 is about 700.6931997025.

Adding to 344020013 its reverse (310020443), we get a palindrome (654040456).

The spelling of 344020013 in words is "three hundred forty-four million, twenty thousand, thirteen".