14221500 has 96 divisors (see below), whose sum is σ = 43680000. Its totient is φ = 3585600.

The previous prime is 14221499. The next prime is 14221511. The reversal of 14221500 is 512241.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 14221500.

It is a congruent number.

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, 28251 + ... + 28749.

It is an arithmetic number, because the mean of its divisors is an integer number (455000).

Almost surely, 2^14221500 is an apocalyptic number.

14221500 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 14221500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21840000).

14221500 is an abundant number, since it is smaller than the sum of its proper divisors (29458500).

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

14221500 is a wasteful number, since it uses less digits than its factorization.

14221500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 14221500 is about 3771.1404110693. The cubic root of 14221500 is about 242.2786445013.

Adding to 14221500 its reverse (512241), we get a palindrome (14733741).

The spelling of 14221500 in words is "fourteen million, two hundred twenty-one thousand, five hundred".