14440347440 has 80 divisors (see below), whose sum is σ = 33971635200. Its totient is φ = 5708102400.

The previous prime is 14440347407. The next prime is 14440347479. The reversal of 14440347440 is 4474304441.

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

It is a self number, because there is not a number n which added to its sum of digits gives 14440347440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2400917 + ... + 2406923.

It is an arithmetic number, because the mean of its divisors is an integer number (424645440).

Almost surely, 2^14440347440 is an apocalyptic number.

14440347440 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 14440347440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16985817600).

14440347440 is an abundant number, since it is smaller than the sum of its proper divisors (19531287760).

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

14440347440 is a wasteful number, since it uses less digits than its factorization.

14440347440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6370 (or 6364 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 35.

The spelling of 14440347440 in words is "fourteen billion, four hundred forty million, three hundred forty-seven thousand, four hundred forty".