14421022440 has 128 divisors (see below), whose sum is σ = 47726755200. Its totient is φ = 3456696320.

The previous prime is 14421022411. The next prime is 14421022453. The reversal of 14421022440 is 4422012441.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 14421022440.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56104 + ... + 178856.

It is an arithmetic number, because the mean of its divisors is an integer number (372865275).

Almost surely, 2^14421022440 is an apocalyptic number.

14421022440 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 14421022440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23863377600).

14421022440 is an abundant number, since it is smaller than the sum of its proper divisors (33305732760).

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

14421022440 is a wasteful number, since it uses less digits than its factorization.

14421022440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122867 (or 122863 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 14421022440 its reverse (4422012441), we get a palindrome (18843034881).

Subtracting from 14421022440 its reverse (4422012441), we obtain a palindrome (9999009999).

The spelling of 14421022440 in words is "fourteen billion, four hundred twenty-one million, twenty-two thousand, four hundred forty".