344044013 has 4 divisors (see below), whose sum is σ = 344196348. Its totient is φ = 343891680.

The previous prime is 344044009. The next prime is 344044027. The reversal of 344044013 is 310440443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310440443 = 1259 ⋅246577.

It can be written as a sum of positive squares in 2 ways, for example, as 198190084 + 145853929 = 14078^2 + 12077^2 .

It is a cyclic number.

It is not a de Polignac number, because 344044013 - 2² = 344044009 is a prime.

It is a super-2 number, since 2×344044013² = 236732565762288338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 344044013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344044073) 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, 72728 + ... + 77313.

It is an arithmetic number, because the mean of its divisors is an integer number (86049087).

Almost surely, 2^344044013 is an apocalyptic number.

It is an amenable number.

344044013 is a deficient number, since it is larger than the sum of its proper divisors (152335).

344044013 is a wasteful number, since it uses less digits than its factorization.

344044013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152334.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 344044013 is about 18548.4234640036. The cubic root of 344044013 is about 700.7094935663.

Adding to 344044013 its reverse (310440443), we get a palindrome (654484456).

The spelling of 344044013 in words is "three hundred forty-four million, forty-four thousand, thirteen".