14144240 has 40 divisors (see below), whose sum is σ = 35877168. Its totient is φ = 5143040.

The previous prime is 14144231. The next prime is 14144243. The reversal of 14144240 is 4244141.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14144243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7157 + ... + 8916.

Almost surely, 2^14144240 is an apocalyptic number.

14144240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14144240 is an abundant number, since it is smaller than the sum of its proper divisors (21732928).

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

14144240 is a wasteful number, since it uses less digits than its factorization.

14144240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16097 (or 16091 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 14144240 is about 3760.8828750707. The cubic root of 14144240 is about 241.8391116933.

Adding to 14144240 its reverse (4244141), we get a palindrome (18388381).

Subtracting from 14144240 its reverse (4244141), we obtain a palindrome (9900099).

The spelling of 14144240 in words is "fourteen million, one hundred forty-four thousand, two hundred forty".