14000440 has 32 divisors (see below), whose sum is σ = 31888080. Its totient is φ = 5531392.

The previous prime is 14000423. The next prime is 14000447. The reversal of 14000440 is 4400041.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 14000440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14000447) 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, 1212 + ... + 5428.

Almost surely, 2^14000440 is an apocalyptic number.

14000440 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 14000440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15944040).

14000440 is an abundant number, since it is smaller than the sum of its proper divisors (17887640).

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

14000440 is a wasteful number, since it uses less digits than its factorization.

14000440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4311 (or 4307 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 14000440 is about 3741.7161837852. The cubic root of 14000440 is about 241.0167513020.

Adding to 14000440 its reverse (4400041), we get a palindrome (18400481).

The spelling of 14000440 in words is "fourteen million, four hundred forty", and thus it is an aban number.