20422040320 has 72 divisors (see below), whose sum is σ = 53364220560. Its totient is φ = 7426191360.

The previous prime is 20422040311. The next prime is 20422040329. The reversal of 20422040320 is 2304022402.

It is an interprime number because it is at equal distance from previous prime (20422040311) and next prime (20422040329).

It is not an unprimeable number, because it can be changed into a prime (20422040329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711135 + ... + 739294.

It is an arithmetic number, because the mean of its divisors is an integer number (741169730).

Almost surely, 2^20422040320 is an apocalyptic number.

20422040320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20422040320 is an abundant number, since it is smaller than the sum of its proper divisors (32942180240).

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

20422040320 is a wasteful number, since it uses less digits than its factorization.

20422040320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450461 (or 1450447 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 20422040320 its reverse (2304022402), we get a palindrome (22726062722).

The spelling of 20422040320 in words is "twenty billion, four hundred twenty-two million, forty thousand, three hundred twenty".