4320220432240 has 20 divisors (see below), whose sum is σ = 10044512505144. Its totient is φ = 1728088172864.

The previous prime is 4320220432219. The next prime is 4320220432249. The reversal of 4320220432240 is 422340220234.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 4320220432199 and 4320220432208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4320220432249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27001377622 + ... + 27001377781.

Almost surely, 2^{4320220432240} is an apocalyptic number.

4320220432240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4320220432240 is an abundant number, since it is smaller than the sum of its proper divisors (5724292072904).

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

4320220432240 is a wasteful number, since it uses less digits than its factorization.

4320220432240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54002755416 (or 54002755410 counting only the distinct ones).

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

Adding to 4320220432240 its reverse (422340220234), we get a palindrome (4742560652474).

The spelling of 4320220432240 in words is "four trillion, three hundred twenty billion, two hundred twenty million, four hundred thirty-two thousand, two hundred forty".