340442143222340 has 24 divisors (see below), whose sum is σ = 715608737253312. Its totient is φ = 136047288434400.

The previous prime is 340442143222319. The next prime is 340442143222351. The reversal of 340442143222340 is 43222341244043.

It is a super-2 number, since 2×340442143222340² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340442143222294 and 340442143222303.

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, 8098031864 + ... + 8098073903.

It is an arithmetic number, because the mean of its divisors is an integer number (29817030718888).

Almost surely, 2^{340442143222340} is an apocalyptic number.

It is an amenable number.

340442143222340 is an abundant number, since it is smaller than the sum of its proper divisors (375166594030972).

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

340442143222340 is a wasteful number, since it uses less digits than its factorization.

340442143222340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16196106827 (or 16196106825 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 38.

Adding to 340442143222340 its reverse (43222341244043), we get a palindrome (383664484466383).

The spelling of 340442143222340 in words is "three hundred forty trillion, four hundred forty-two billion, one hundred forty-three million, two hundred twenty-two thousand, three hundred forty".