344123431 has 4 divisors (see below), whose sum is σ = 344185432. Its totient is φ = 344061432.

The previous prime is 344123419. The next prime is 344123441. The reversal of 344123431 is 134321443.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 344123431 - 2¹⁹ = 343599143 is a prime.

It is a super-2 number, since 2×344123431² = 236841871526423522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 344123396 and 344123405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344123441) 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, 21756 + ... + 34081.

It is an arithmetic number, because the mean of its divisors is an integer number (86046358).

Almost surely, 2^344123431 is an apocalyptic number.

344123431 is a deficient number, since it is larger than the sum of its proper divisors (62001).

344123431 is an equidigital number, since it uses as much as digits as its factorization.

344123431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62000.

The product of its digits is 3456, while the sum is 25.

The square root of 344123431 is about 18550.5641693184. The cubic root of 344123431 is about 700.7634059177.

Adding to 344123431 its reverse (134321443), we get a palindrome (478444874).

The spelling of 344123431 in words is "three hundred forty-four million, one hundred twenty-three thousand, four hundred thirty-one".