420120420144 has 80 divisors (see below), whose sum is σ = 1112866355328. Its totient is φ = 136527722496.

The previous prime is 420120420107. The next prime is 420120420149. The reversal of 420120420144 is 441024021024.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (420120420149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361422 + ... + 985325.

Almost surely, 2^420120420144 is an apocalyptic number.

It is an amenable number.

420120420144 is an abundant number, since it is smaller than the sum of its proper divisors (692745935184).

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

420120420144 is a wasteful number, since it uses less digits than its factorization.

420120420144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346922 (or 1346916 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 420120420144 its reverse (441024021024), we get a palindrome (861144441168).

The spelling of 420120420144 in words is "four hundred twenty billion, one hundred twenty million, four hundred twenty thousand, one hundred forty-four".