420004022144 has 48 divisors (see below), whose sum is σ = 973335228480. Its totient is φ = 180001721088.

The previous prime is 420004022129. The next prime is 420004022147. The reversal of 420004022144 is 441220400024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420004022147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33476192 + ... + 33488735.

It is an arithmetic number, because the mean of its divisors is an integer number (20277817260).

Almost surely, 2^420004022144 is an apocalyptic number.

It is an amenable number.

420004022144 is an abundant number, since it is smaller than the sum of its proper divisors (553331206336).

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

420004022144 is an equidigital number, since it uses as much as digits as its factorization.

420004022144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66964955 (or 66964936 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 420004022144 its reverse (441220400024), we get a palindrome (861224422168).

The spelling of 420004022144 in words is "four hundred twenty billion, four million, twenty-two thousand, one hundred forty-four".