340344323420 has 48 divisors (see below), whose sum is σ = 725259225600. Its totient is φ = 134133330240.

The previous prime is 340344323359. The next prime is 340344323443. The reversal of 340344323420 is 24323443043.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2136911 + ... + 2290649.

It is an arithmetic number, because the mean of its divisors is an integer number (15109567200).

Almost surely, 2^340344323420 is an apocalyptic number.

It is an amenable number.

340344323420 is an abundant number, since it is smaller than the sum of its proper divisors (384914902180).

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

340344323420 is a wasteful number, since it uses less digits than its factorization.

340344323420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155378 (or 155376 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 32.

Adding to 340344323420 its reverse (24323443043), we get a palindrome (364667766463).

The spelling of 340344323420 in words is "three hundred forty billion, three hundred forty-four million, three hundred twenty-three thousand, four hundred twenty".