340444113421340 has 24 divisors (see below), whose sum is σ = 714936654650400. Its totient is φ = 136176880327488.

The previous prime is 340444113421331. The next prime is 340444113421361. The reversal of 340444113421340 is 43124311444043.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 340444113421294 and 340444113421303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44159240 + ... + 51292559.

It is an arithmetic number, because the mean of its divisors is an integer number (29789027277100).

Almost surely, 2^{340444113421340} is an apocalyptic number.

It is an amenable number.

340444113421340 is an abundant number, since it is smaller than the sum of its proper divisors (374492541229060).

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

340444113421340 is a wasteful number, since it uses less digits than its factorization.

340444113421340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95630141 (or 95630139 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 340444113421340 its reverse (43124311444043), we get a palindrome (383568424865383).

The spelling of 340444113421340 in words is "three hundred forty trillion, four hundred forty-four billion, one hundred thirteen million, four hundred twenty-one thousand, three hundred forty".