22422000040 has 64 divisors (see below), whose sum is σ = 55240704000. Its totient is φ = 8123101440.

The previous prime is 22422000017. The next prime is 22422000049. The reversal of 22422000040 is 4000022422.

It is a junction number, because it is equal to n+sod(n) for n = 22421999978 and 22422000023.

It is not an unprimeable number, because it can be changed into a prime (22422000049) 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, 23641 + ... + 213079.

It is an arithmetic number, because the mean of its divisors is an integer number (863136000).

Almost surely, 2^22422000040 is an apocalyptic number.

22422000040 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 22422000040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27620352000).

22422000040 is an abundant number, since it is smaller than the sum of its proper divisors (32818703960).

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

22422000040 is a wasteful number, since it uses less digits than its factorization.

22422000040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189730 (or 189726 counting only the distinct ones).

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

Adding to 22422000040 its reverse (4000022422), we get a palindrome (26422022462).

The spelling of 22422000040 in words is "twenty-two billion, four hundred twenty-two million, forty", and thus it is an aban number.