344402305423 has 8 divisors (see below), whose sum is σ = 375744042576. Its totient is φ = 313065974400.

The previous prime is 344402305421. The next prime is 344402305427. The reversal of 344402305423 is 324503204443.

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 344402305423 - 2¹ = 344402305421 is a prime.

It is a super-2 number, since 2×344402305423² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344402305421) 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, 1217748 + ... + 1473673.

It is an arithmetic number, because the mean of its divisors is an integer number (46968005322).

Almost surely, 2^344402305423 is an apocalyptic number.

344402305423 is a deficient number, since it is larger than the sum of its proper divisors (31341737153).

344402305423 is a wasteful number, since it uses less digits than its factorization.

344402305423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703065.

The product of its (nonzero) digits is 138240, while the sum is 34.

Adding to 344402305423 its reverse (324503204443), we get a palindrome (668905509866).

The spelling of 344402305423 in words is "three hundred forty-four billion, four hundred two million, three hundred five thousand, four hundred twenty-three".