40422400220 has 24 divisors (see below), whose sum is σ = 84940129008. Its totient is φ = 16158848000.

The previous prime is 40422400219. The next prime is 40422400223. The reversal of 40422400220 is 2200422404.

40422400220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 40422400192 and 40422400201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40422400223) 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, 599186 + ... + 663225.

It is an arithmetic number, because the mean of its divisors is an integer number (3539172042).

Almost surely, 2^40422400220 is an apocalyptic number.

It is an amenable number.

40422400220 is an abundant number, since it is smaller than the sum of its proper divisors (44517728788).

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

40422400220 is a wasteful number, since it uses less digits than its factorization.

40422400220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264021 (or 1264019 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40422400220 its reverse (2200422404), we get a palindrome (42622822624).

The spelling of 40422400220 in words is "forty billion, four hundred twenty-two million, four hundred thousand, two hundred twenty".