14222540 has 48 divisors (see below), whose sum is σ = 32205600. Its totient is φ = 5256192.

The previous prime is 14222501. The next prime is 14222543. The reversal of 14222540 is 4522241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (14222543) 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, 19706 + ... + 20414.

It is an arithmetic number, because the mean of its divisors is an integer number (670950).

Almost surely, 2^14222540 is an apocalyptic number.

14222540 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 14222540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16102800).

14222540 is an abundant number, since it is smaller than the sum of its proper divisors (17983060).

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

14222540 is a wasteful number, since it uses less digits than its factorization.

14222540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 14222540 is about 3771.2782978720. The cubic root of 14222540 is about 242.2845501992.

Adding to 14222540 its reverse (4522241), we get a palindrome (18744781).

The spelling of 14222540 in words is "fourteen million, two hundred twenty-two thousand, five hundred forty".