14445240 has 128 divisors (see below), whose sum is σ = 46992960. Its totient is φ = 3538944.

The previous prime is 14445191. The next prime is 14445247. The reversal of 14445240 is 4254441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 14445240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14445247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148872 + ... + 148968.

Almost surely, 2^14445240 is an apocalyptic number.

14445240 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 14445240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23496480).

14445240 is an abundant number, since it is smaller than the sum of its proper divisors (32547720).

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

14445240 is a wasteful number, since it uses less digits than its factorization.

14445240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 14445240 is about 3800.6894111464. The cubic root of 14445240 is about 243.5425901634.

Adding to 14445240 its reverse (4254441), we get a palindrome (18699681).

The spelling of 14445240 in words is "fourteen million, four hundred forty-five thousand, two hundred forty".