344355013 has 4 divisors (see below), whose sum is σ = 344854048. Its totient is φ = 343855980.

The previous prime is 344355007. The next prime is 344355049. The reversal of 344355013 is 310553443.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310553443 = 31 ⋅10017853.

It is a cyclic number.

It is not a de Polignac number, because 344355013 - 2⁵ = 344354981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344355073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248481 + ... + 249862.

It is an arithmetic number, because the mean of its divisors is an integer number (86213512).

Almost surely, 2^344355013 is an apocalyptic number.

It is an amenable number.

344355013 is a deficient number, since it is larger than the sum of its proper divisors (499035).

344355013 is an equidigital number, since it uses as much as digits as its factorization.

344355013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499034.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 344355013 is about 18556.8050321169. The cubic root of 344355013 is about 700.9205663882.

The spelling of 344355013 in words is "three hundred forty-four million, three hundred fifty-five thousand, thirteen".