22000438042 has 24 divisors (see below), whose sum is σ = 37117035648. Its totient is φ = 9767631720.

The previous prime is 22000438039. The next prime is 22000438093. The reversal of 22000438042 is 24083400022.

It is a junction number, because it is equal to n+sod(n) for n = 22000437998 and 22000438016.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1046698 + ... + 1067509.

It is an arithmetic number, because the mean of its divisors is an integer number (1546543152).

Almost surely, 2^22000438042 is an apocalyptic number.

22000438042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22000438042 is a deficient number, since it is larger than the sum of its proper divisors (15116597606).

22000438042 is a wasteful number, since it uses less digits than its factorization.

22000438042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114274 (or 2114263 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 22000438042 its reverse (24083400022), we get a palindrome (46083838064).

The spelling of 22000438042 in words is "twenty-two billion, four hundred thirty-eight thousand, forty-two".