420020424444 has 12 divisors (see below), whose sum is σ = 980047657064. Its totient is φ = 140006808144.

The previous prime is 420020424443. The next prime is 420020424449. The reversal of 420020424444 is 444424020024.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420020424443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17500851007 + ... + 17500851030.

Almost surely, 2^420020424444 is an apocalyptic number.

It is an amenable number.

420020424444 is an abundant number, since it is smaller than the sum of its proper divisors (560027232620).

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

420020424444 is a wasteful number, since it uses less digits than its factorization.

420020424444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35001702044 (or 35001702042 counting only the distinct ones).

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

Adding to 420020424444 its reverse (444424020024), we get a palindrome (864444444468).

The spelling of 420020424444 in words is "four hundred twenty billion, twenty million, four hundred twenty-four thousand, four hundred forty-four".