20022340520 has 64 divisors (see below), whose sum is σ = 55446491520. Its totient is φ = 6336739584.

The previous prime is 20022340517. The next prime is 20022340523. The reversal of 20022340520 is 2504322002.

It is an interprime number because it is at equal distance from previous prime (20022340517) and next prime (20022340523).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20022340492 and 20022340501.

It is not an unprimeable number, because it can be changed into a prime (20022340523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2746682 + ... + 2753961.

It is an arithmetic number, because the mean of its divisors is an integer number (866351430).

Almost surely, 2^20022340520 is an apocalyptic number.

20022340520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022340520 is an abundant number, since it is smaller than the sum of its proper divisors (35424151000).

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

20022340520 is a wasteful number, since it uses less digits than its factorization.

20022340520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500674 (or 5500670 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 20022340520 its reverse (2504322002), we get a palindrome (22526662522).

The spelling of 20022340520 in words is "twenty billion, twenty-two million, three hundred forty thousand, five hundred twenty".