344040431 has 8 divisors (see below), whose sum is σ = 393974784. Its totient is φ = 294302520.

The previous prime is 344040421. The next prime is 344040443. The reversal of 344040431 is 134040443.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 344040431 - 2¹⁴ = 344024047 is a prime.

It is a super-2 number, since 2×344040431² = 236727636325331522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 344040397 and 344040406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344040421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45335 + ... + 52376.

It is an arithmetic number, because the mean of its divisors is an integer number (49246848).

Almost surely, 2^344040431 is an apocalyptic number.

344040431 is a deficient number, since it is larger than the sum of its proper divisors (49934353).

344040431 is an equidigital number, since it uses as much as digits as its factorization.

344040431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98221.

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

The square root of 344040431 is about 18548.3269056807. The cubic root of 344040431 is about 700.7070617553.

Adding to 344040431 its reverse (134040443), we get a palindrome (478080874).

The spelling of 344040431 in words is "three hundred forty-four million, forty thousand, four hundred thirty-one".