22333220403440 has 40 divisors (see below), whose sum is σ = 52001435846880. Its totient is φ = 8920092736256.

The previous prime is 22333220403433. The next prime is 22333220403443. The reversal of 22333220403440 is 4430402233322.

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 = 22333220403397 and 22333220403406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22333220403443) 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, 206124020 + ... + 206232339.

It is an arithmetic number, because the mean of its divisors is an integer number (1300035896172).

Almost surely, 2^{22333220403440} is an apocalyptic number.

22333220403440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22333220403440 is an abundant number, since it is smaller than the sum of its proper divisors (29668215443440).

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

22333220403440 is a wasteful number, since it uses less digits than its factorization.

22333220403440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412357049 (or 412357043 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 32.

Adding to 22333220403440 its reverse (4430402233322), we get a palindrome (26763622636762).

The spelling of 22333220403440 in words is "twenty-two trillion, three hundred thirty-three billion, two hundred twenty million, four hundred three thousand, four hundred forty".