343400303023340 has 12 divisors (see below), whose sum is σ = 721140636349056. Its totient is φ = 137360121209328.

The previous prime is 343400303023321. The next prime is 343400303023381. The reversal of 343400303023340 is 43320303004343.

It is a junction number, because it is equal to n+sod(n) for n = 343400303023297 and 343400303023306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8585007575564 + ... + 8585007575603.

It is an arithmetic number, because the mean of its divisors is an integer number (60095053029088).

Almost surely, 2^{343400303023340} is an apocalyptic number.

It is an amenable number.

343400303023340 is an abundant number, since it is smaller than the sum of its proper divisors (377740333325716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

343400303023340 is a wasteful number, since it uses less digits than its factorization.

343400303023340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17170015151176 (or 17170015151174 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 32.

Adding to 343400303023340 its reverse (43320303004343), we get a palindrome (386720606027683).

The spelling of 343400303023340 in words is "three hundred forty-three trillion, four hundred billion, three hundred three million, twenty-three thousand, three hundred forty".