14432423440 has 20 divisors (see below), whose sum is σ = 33555384684. Its totient is φ = 5772969344.

The previous prime is 14432423371. The next prime is 14432423441. The reversal of 14432423440 is 4432423441.

It can be written as a sum of positive squares in 2 ways, for example, as 7480866064 + 6951557376 = 86492^2 + 83376^2 .

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

It is a super-2 number, since 2×14432423440² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14432423441) 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, 90202567 + ... + 90202726.

Almost surely, 2^14432423440 is an apocalyptic number.

14432423440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14432423440 is an abundant number, since it is smaller than the sum of its proper divisors (19122961244).

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

14432423440 is a wasteful number, since it uses less digits than its factorization.

14432423440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180405306 (or 180405300 counting only the distinct ones).

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

Adding to 14432423440 its reverse (4432423441), we get a palindrome (18864846881).

Subtracting from 14432423440 its reverse (4432423441), we obtain a palindrome (9999999999).

The spelling of 14432423440 in words is "fourteen billion, four hundred thirty-two million, four hundred twenty-three thousand, four hundred forty".