420012144420 has 96 divisors (see below), whose sum is σ = 1286442694656. Its totient is φ = 101543625600.

The previous prime is 420012144401. The next prime is 420012144439. The reversal of 420012144420 is 24441210024.

It is an interprime number because it is at equal distance from previous prime (420012144401) and next prime (420012144439).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 624786 + ... + 1109225.

It is an arithmetic number, because the mean of its divisors is an integer number (13400444736).

Almost surely, 2^420012144420 is an apocalyptic number.

It is an amenable number.

420012144420 is an abundant number, since it is smaller than the sum of its proper divisors (866430550236).

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

420012144420 is a wasteful number, since it uses less digits than its factorization.

420012144420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734401 (or 1734399 counting only the distinct ones).

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

Adding to 420012144420 its reverse (24441210024), we get a palindrome (444453354444).

The spelling of 420012144420 in words is "four hundred twenty billion, twelve million, one hundred forty-four thousand, four hundred twenty".