• Deleting all the even digits from 2³⁴⁴ we obtain a prime of 55 digits.

• 344 can be written using four 4's:

See also 113.

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344 has 8 divisors (see below), whose sum is σ = 660. Its totient is φ = 168.

The previous prime is 337. The next prime is 347. The reversal of 344 is 443.

344 = T₅ + T₆ + ... + T₁₂.

344 is nontrivially palindromic in base 7.

344 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 7³+1.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 5, base 10, base 12, base 15 and base 16.

It is a nialpdrome in base 8 and base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14 + ... + 29.

It is an amenable number.

344 is a deficient number, since it is larger than the sum of its proper divisors (316).

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

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

The sum of its prime factors is 49 (or 45 counting only the distinct ones).

The product of its digits is 48, while the sum is 11.

The square root of 344 is about 18.5472369910. The cubic root of 344 is about 7.0067961208.

Subtracting from 344 its sum of digits (11), we obtain a palindrome (333).

Adding to 344 its reverse (443), we get a palindrome (787).

Subtracting 344 from its reverse (443), we obtain a palindrome (99).

It can be divided in two parts, 34 and 4, that multiplied together give a triangular number (136 = T₁₆).

The spelling of 344 in words is "three hundred forty-four", and thus it is an aban number and an iban number.