423232214440 has 128 divisors (see below), whose sum is σ = 1109261329920. Its totient is φ = 142316928000.

The previous prime is 423232214429. The next prime is 423232214443. The reversal of 423232214440 is 44412232324.

It is a super-2 number, since 2×423232214440² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (423232214443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75696045 + ... + 75701635.

It is an arithmetic number, because the mean of its divisors is an integer number (8666104140).

Almost surely, 2^423232214440 is an apocalyptic number.

423232214440 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 423232214440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554630664960).

423232214440 is an abundant number, since it is smaller than the sum of its proper divisors (686029115480).

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

423232214440 is a wasteful number, since it uses less digits than its factorization.

423232214440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10763 (or 10759 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 423232214440 its reverse (44412232324), we get a palindrome (467644446764).

The spelling of 423232214440 in words is "four hundred twenty-three billion, two hundred thirty-two million, two hundred fourteen thousand, four hundred forty".