20234304420 has 192 divisors, whose sum is σ = 63542949120. Its totient is φ = 4768358400.

The previous prime is 20234304403. The next prime is 20234304427. The reversal of 20234304420 is 2440343202.

It is a super-2 number, since 2×20234304420² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20234304427) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 8468586 + ... + 8470974.

It is an arithmetic number, because the mean of its divisors is an integer number (330952860).

Almost surely, 2^20234304420 is an apocalyptic number.

20234304420 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 20234304420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31771474560).

20234304420 is an abundant number, since it is smaller than the sum of its proper divisors (43308644700).

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

20234304420 is a wasteful number, since it uses less digits than its factorization.

20234304420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766 (or 2764 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20234304420 its reverse (2440343202), we get a palindrome (22674647622).

The spelling of 20234304420 in words is "twenty billion, two hundred thirty-four million, three hundred four thousand, four hundred twenty".