340421655426 has 16 divisors (see below), whose sum is σ = 682023288864. Its totient is φ = 113277222144.

The previous prime is 340421655347. The next prime is 340421655433. The reversal of 340421655426 is 624556124043.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49162000 + ... + 49168923.

It is an arithmetic number, because the mean of its divisors is an integer number (42626455554).

Almost surely, 2^340421655426 is an apocalyptic number.

340421655426 is an abundant number, since it is smaller than the sum of its proper divisors (341601633438).

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

340421655426 is a wasteful number, since it uses less digits than its factorization.

340421655426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98331505.

The product of its (nonzero) digits is 691200, while the sum is 42.

Adding to 340421655426 its reverse (624556124043), we get a palindrome (964977779469).

The spelling of 340421655426 in words is "three hundred forty billion, four hundred twenty-one million, six hundred fifty-five thousand, four hundred twenty-six".