344223769 has 4 divisors (see below), whose sum is σ = 364472244. Its totient is φ = 323975296.

The previous prime is 344223767. The next prime is 344223791. The reversal of 344223769 is 967322443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 967322443 = 1303 ⋅742381.

It can be written as a sum of positive squares in 2 ways, for example, as 107433225 + 236790544 = 10365^2 + 15388^2 .

It is a cyclic number.

It is not a de Polignac number, because 344223769 - 2¹ = 344223767 is a prime.

It is a super-2 number, since 2×344223769² = 236980006289130722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344223767) 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, 10124212 + ... + 10124245.

It is an arithmetic number, because the mean of its divisors is an integer number (91118061).

Almost surely, 2^344223769 is an apocalyptic number.

It is an amenable number.

344223769 is a deficient number, since it is larger than the sum of its proper divisors (20248475).

344223769 is a wasteful number, since it uses less digits than its factorization.

344223769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20248474.

The product of its digits is 217728, while the sum is 40.

The square root of 344223769 is about 18553.2684182599. The cubic root of 344223769 is about 700.8315078055.

The spelling of 344223769 in words is "three hundred forty-four million, two hundred twenty-three thousand, seven hundred sixty-nine".