4042340120420 has 96 divisors (see below), whose sum is σ = 10214288179200. Its totient is φ = 1312735780224.

The previous prime is 4042340120383. The next prime is 4042340120437. The reversal of 4042340120420 is 240210432404.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4042340120420.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13252949 + ... + 13554531.

It is an arithmetic number, because the mean of its divisors is an integer number (106398835200).

Almost surely, 2^{4042340120420} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4042340120420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5107144089600).

4042340120420 is an abundant number, since it is smaller than the sum of its proper divisors (6171948058780).

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

4042340120420 is a wasteful number, since it uses less digits than its factorization.

4042340120420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306657 (or 306655 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 4042340120420 its reverse (240210432404), we get a palindrome (4282550552824).

The spelling of 4042340120420 in words is "four trillion, forty-two billion, three hundred forty million, one hundred twenty thousand, four hundred twenty".