340442430440 has 64 divisors (see below), whose sum is σ = 926918899200. Its totient is φ = 109857051648.

The previous prime is 340442430431. The next prime is 340442430443. The reversal of 340442430440 is 44034244043.

It is a junction number, because it is equal to n+sod(n) for n = 340442430397 and 340442430406.

It is not an unprimeable number, because it can be changed into a prime (340442430443) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 35756000 + ... + 35765519.

It is an arithmetic number, because the mean of its divisors is an integer number (14483107800).

Almost surely, 2^340442430440 is an apocalyptic number.

It is an amenable number.

340442430440 is an abundant number, since it is smaller than the sum of its proper divisors (586476468760).

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

340442430440 is a wasteful number, since it uses less digits than its factorization.

340442430440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71521554 (or 71521550 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 340442430440 its reverse (44034244043), we get a palindrome (384476674483).

The spelling of 340442430440 in words is "three hundred forty billion, four hundred forty-two million, four hundred thirty thousand, four hundred forty".