42004202420 has 24 divisors (see below), whose sum is σ = 88560265248. Its totient is φ = 16734740000.

The previous prime is 42004202407. The next prime is 42004202441. The reversal of 42004202420 is 2420240024.

42004202420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 42004202392 and 42004202401.

It is a congruent number.

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, 4178666 + ... + 4188705.

It is an arithmetic number, because the mean of its divisors is an integer number (3690011052).

Almost surely, 2^42004202420 is an apocalyptic number.

It is an amenable number.

42004202420 is an abundant number, since it is smaller than the sum of its proper divisors (46556062828).

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

42004202420 is a wasteful number, since it uses less digits than its factorization.

42004202420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8367631 (or 8367629 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 42004202420 its reverse (2420240024), we get a palindrome (44424442444).

The spelling of 42004202420 in words is "forty-two billion, four million, two hundred two thousand, four hundred twenty".