20202041420 has 72 divisors (see below), whose sum is σ = 46674381600. Its totient is φ = 7339467520.

The previous prime is 20202041413. The next prime is 20202041423. The reversal of 20202041420 is 2414020202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20202041423) 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 23 ways as a sum of consecutive naturals, for example, 3188816 + ... + 3195144.

It is an arithmetic number, because the mean of its divisors is an integer number (648255300).

Almost surely, 2^20202041420 is an apocalyptic number.

20202041420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20202041420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23337190800).

20202041420 is an abundant number, since it is smaller than the sum of its proper divisors (26472340180).

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

20202041420 is a wasteful number, since it uses less digits than its factorization.

20202041420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7679 (or 7666 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20202041420 its reverse (2414020202), we get a palindrome (22616061622).

The spelling of 20202041420 in words is "twenty billion, two hundred two million, forty-one thousand, four hundred twenty".