14061440 has 64 divisors (see below), whose sum is σ = 34076160. Its totient is φ = 5548032.

The previous prime is 14061427. The next prime is 14061449. The reversal of 14061440 is 4416041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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 (14061449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81194 + ... + 81366.

It is an arithmetic number, because the mean of its divisors is an integer number (532440).

Almost surely, 2^14061440 is an apocalyptic number.

14061440 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 14061440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17038080).

14061440 is an abundant number, since it is smaller than the sum of its proper divisors (20014720).

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

14061440 is a wasteful number, since it uses less digits than its factorization.

14061440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 14061440 is about 3749.8586640032. The cubic root of 14061440 is about 241.3662812953.

Adding to 14061440 its reverse (4416041), we get a palindrome (18477481).

The spelling of 14061440 in words is "fourteen million, sixty-one thousand, four hundred forty".