22004242040440 has 64 divisors (see below), whose sum is σ = 55266468428160. Its totient is φ = 7815460168320.

The previous prime is 22004242040401. The next prime is 22004242040447. The reversal of 22004242040440 is 4404024240022.

It is a junction number, because it is equal to n+sod(n) for n = 22004242040399 and 22004242040408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004242040447) 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, 581488534 + ... + 581526373.

It is an arithmetic number, because the mean of its divisors is an integer number (863538569190).

Almost surely, 2^{22004242040440} is an apocalyptic number.

22004242040440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22004242040440 is an abundant number, since it is smaller than the sum of its proper divisors (33262226387720).

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

22004242040440 is a wasteful number, since it uses less digits than its factorization.

22004242040440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163014972 (or 1163014968 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 22004242040440 its reverse (4404024240022), we get a palindrome (26408266280462).

The spelling of 22004242040440 in words is "twenty-two trillion, four billion, two hundred forty-two million, forty thousand, four hundred forty".