4223420030440 has 256 divisors, whose sum is σ = 10942018617600. Its totient is φ = 1454195441664.

The previous prime is 4223420030437. The next prime is 4223420030483. The reversal of 4223420030440 is 440300243224.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4223420030399 and 4223420030408.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 227141784 + ... + 227160376.

It is an arithmetic number, because the mean of its divisors is an integer number (42742260225).

Almost surely, 2^{4223420030440} is an apocalyptic number.

4223420030440 is a gapful number since it is divisible by the number (40) 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 4223420030440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5471009308800).

4223420030440 is an abundant number, since it is smaller than the sum of its proper divisors (6718598587160).

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

4223420030440 is a wasteful number, since it uses less digits than its factorization.

4223420030440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18996 (or 18992 counting only the distinct ones).

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

Adding to 4223420030440 its reverse (440300243224), we get a palindrome (4663720273664).

The spelling of 4223420030440 in words is "four trillion, two hundred twenty-three billion, four hundred twenty million, thirty thousand, four hundred forty".