20234423220 has 96 divisors (see below), whose sum is σ = 61845759360. Its totient is φ = 4902236160.

The previous prime is 20234423201. The next prime is 20234423291. The reversal of 20234423220 is 2232443202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1148236 + ... + 1165724.

It is an arithmetic number, because the mean of its divisors is an integer number (644226660).

Almost surely, 2^20234423220 is an apocalyptic number.

20234423220 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 20234423220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30922879680).

20234423220 is an abundant number, since it is smaller than the sum of its proper divisors (41611336140).

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

20234423220 is a wasteful number, since it uses less digits than its factorization.

20234423220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19265 (or 19263 counting only the distinct ones).

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

Adding to 20234423220 its reverse (2232443202), we get a palindrome (22466866422).

The spelling of 20234423220 in words is "twenty billion, two hundred thirty-four million, four hundred twenty-three thousand, two hundred twenty".