14115440 has 80 divisors (see below), whose sum is σ = 35435232. Its totient is φ = 5210112.

The previous prime is 14115433. The next prime is 14115443. The reversal of 14115440 is 4451141.

14115440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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 (14115443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131867 + ... + 131973.

Almost surely, 2^14115440 is an apocalyptic number.

14115440 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 14115440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17717616).

14115440 is an abundant number, since it is smaller than the sum of its proper divisors (21319792).

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

14115440 is a wasteful number, since it uses less digits than its factorization.

14115440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 14115440 is about 3757.0520358387. The cubic root of 14115440 is about 241.6748587526.

Adding to 14115440 its reverse (4451141), we get a palindrome (18566581).

The spelling of 14115440 in words is "fourteen million, one hundred fifteen thousand, four hundred forty".