22440422004440 has 32 divisors (see below), whose sum is σ = 55081035830160. Its totient is φ = 8160153456000.

The previous prime is 22440422004433. The next prime is 22440422004449. The reversal of 22440422004440 is 4440022404422.

It is a junction number, because it is equal to n+sod(n) for n = 22440422004397 and 22440422004406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22440422004449) 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, 25500479111 + ... + 25500479990.

Almost surely, 2^{22440422004440} is an apocalyptic number.

22440422004440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22440422004440 is an abundant number, since it is smaller than the sum of its proper divisors (32640613825720).

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

22440422004440 is a wasteful number, since it uses less digits than its factorization.

22440422004440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51000959123 (or 51000959119 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 22440422004440 its reverse (4440022404422), we get a palindrome (26880444408862).

The spelling of 22440422004440 in words is "twenty-two trillion, four hundred forty billion, four hundred twenty-two million, four thousand, four hundred forty".