420420404244 has 48 divisors (see below), whose sum is σ = 1015820176896. Its totient is φ = 135191625600.

The previous prime is 420420404227. The next prime is 420420404249. The reversal of 420420404244 is 442404024024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420420404249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1664667 + ... + 1900514.

It is an arithmetic number, because the mean of its divisors is an integer number (21162920352).

Almost surely, 2^420420404244 is an apocalyptic number.

It is an amenable number.

420420404244 is an abundant number, since it is smaller than the sum of its proper divisors (595399772652).

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

420420404244 is a wasteful number, since it uses less digits than its factorization.

420420404244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565536 (or 3565534 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 420420404244 its reverse (442404024024), we get a palindrome (862824428268).

The spelling of 420420404244 in words is "four hundred twenty billion, four hundred twenty million, four hundred four thousand, two hundred forty-four".