40002422020 has 96 divisors (see below), whose sum is σ = 95704955136. Its totient is φ = 13902451200.

The previous prime is 40002421993. The next prime is 40002422021. The reversal of 40002422020 is 2022420004.

It is a junction number, because it is equal to n+sod(n) for n = 40002421985 and 40002422003.

It is not an unprimeable number, because it can be changed into a prime (40002422021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8199822 + ... + 8204698.

It is an arithmetic number, because the mean of its divisors is an integer number (996926616).

Almost surely, 2^40002422020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40002422020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47852477568).

40002422020 is an abundant number, since it is smaller than the sum of its proper divisors (55702533116).

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

40002422020 is a wasteful number, since it uses less digits than its factorization.

40002422020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6541 (or 6539 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 40002422020 its reverse (2022420004), we get a palindrome (42024842024).

The spelling of 40002422020 in words is "forty billion, two million, four hundred twenty-two thousand, twenty".