14520403240 has 288 divisors, whose sum is σ = 41179207680. Its totient is φ = 4585760256.

The previous prime is 14520403237. The next prime is 14520403253. The reversal of 14520403240 is 4230402541.

It is a happy number.

14520403240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×14520403240² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 37912089 + ... + 37912471.

It is an arithmetic number, because the mean of its divisors is an integer number (142983360).

Almost surely, 2^14520403240 is an apocalyptic number.

14520403240 is a gapful number since it is divisible by the number (10) 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 14520403240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20589603840).

14520403240 is an abundant number, since it is smaller than the sum of its proper divisors (26658804440).

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

14520403240 is a wasteful number, since it uses less digits than its factorization.

14520403240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 14520403240 its reverse (4230402541), we get a palindrome (18750805781).

The spelling of 14520403240 in words is "fourteen billion, five hundred twenty million, four hundred three thousand, two hundred forty".