20020622240 has 96 divisors (see below), whose sum is σ = 49828504320. Its totient is φ = 7580611584.

The previous prime is 20020622239. The next prime is 20020622243. The reversal of 20020622240 is 4222602002.

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

It is not an unprimeable number, because it can be changed into a prime (20020622243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5874617 + ... + 5878023.

It is an arithmetic number, because the mean of its divisors is an integer number (519046920).

Almost surely, 2^20020622240 is an apocalyptic number.

20020622240 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 20020622240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24914252160).

20020622240 is an abundant number, since it is smaller than the sum of its proper divisors (29807882080).

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

20020622240 is a wasteful number, since it uses less digits than its factorization.

20020622240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374 (or 5366 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The spelling of 20020622240 in words is "twenty billion, twenty million, six hundred twenty-two thousand, two hundred forty".