222432423440 has 80 divisors (see below), whose sum is σ = 531289714032. Its totient is φ = 86542682112.

The previous prime is 222432423401. The next prime is 222432423449. The reversal of 222432423440 is 44324234222.

222432423440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 41218744576 + 181213678864 = 203024^2 + 425692^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×222432423440² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222432423397 and 222432423406.

It is not an unprimeable number, because it can be changed into a prime (222432423449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12295682 + ... + 12313758.

Almost surely, 2^222432423440 is an apocalyptic number.

222432423440 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 222432423440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265644857016).

222432423440 is an abundant number, since it is smaller than the sum of its proper divisors (308857290592).

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

222432423440 is a wasteful number, since it uses less digits than its factorization.

222432423440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22284 (or 22278 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 222432423440 its reverse (44324234222), we get a palindrome (266756657662).

The spelling of 222432423440 in words is "two hundred twenty-two billion, four hundred thirty-two million, four hundred twenty-three thousand, four hundred forty".