22420043320240 has 40 divisors (see below), whose sum is σ = 52133794920000. Its totient is φ = 8966779616256.

The previous prime is 22420043320223. The next prime is 22420043320253. The reversal of 22420043320240 is 4202334002422.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 22420043320199 and 22420043320208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18755865 + ... + 19915384.

It is an arithmetic number, because the mean of its divisors is an integer number (1303344873000).

Almost surely, 2^{22420043320240} is an apocalyptic number.

22420043320240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22420043320240 is an abundant number, since it is smaller than the sum of its proper divisors (29713751599760).

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

22420043320240 is a wasteful number, since it uses less digits than its factorization.

22420043320240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38678509 (or 38678503 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 22420043320240 its reverse (4202334002422), we get a palindrome (26622377322662).

The spelling of 22420043320240 in words is "twenty-two trillion, four hundred twenty billion, forty-three million, three hundred twenty thousand, two hundred forty".