22403320440000 has 280 divisors, whose sum is σ = 74121007285248. Its totient is φ = 5970153600000.

The previous prime is 22403320439947. The next prime is 22403320440001. The reversal of 22403320440000 is 4402330422.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (22403320440001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 178377225 + ... + 178502775.

Almost surely, 2^{22403320440000} is an apocalyptic number.

22403320440000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22403320440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37060503642624).

22403320440000 is an abundant number, since it is smaller than the sum of its proper divisors (51717686845248).

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

22403320440000 is a wasteful number, since it uses less digits than its factorization.

22403320440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127073 (or 127048 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 22403320440000 its reverse (4402330422), we get a palindrome (22407722770422).

The spelling of 22403320440000 in words is "twenty-two trillion, four hundred three billion, three hundred twenty million, four hundred forty thousand".