40004022220 has 24 divisors (see below), whose sum is σ = 84013501824. Its totient is φ = 16000646016.

The previous prime is 40004022167. The next prime is 40004022229. The reversal of 40004022220 is 2222040004.

It is a junction number, because it is equal to n+sod(n) for n = 40004022194 and 40004022203.

It is not an unprimeable number, because it can be changed into a prime (40004022229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348037 + ... + 448483.

It is an arithmetic number, because the mean of its divisors is an integer number (3500562576).

Almost surely, 2^40004022220 is an apocalyptic number.

It is an amenable number.

40004022220 is an abundant number, since it is smaller than the sum of its proper divisors (44009479604).

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

40004022220 is a wasteful number, since it uses less digits than its factorization.

40004022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120369 (or 120367 counting only the distinct ones).

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

Adding to 40004022220 its reverse (2222040004), we get a palindrome (42226062224).

The spelling of 40004022220 in words is "forty billion, four million, twenty-two thousand, two hundred twenty".