14563220 has 96 divisors (see below), whose sum is σ = 38465280. Its totient is φ = 4515840.

The previous prime is 14563207. The next prime is 14563223. The reversal of 14563220 is 2236541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14563223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68915 + ... + 69125.

It is an arithmetic number, because the mean of its divisors is an integer number (400680).

Almost surely, 2^14563220 is an apocalyptic number.

14563220 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 14563220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19232640).

14563220 is an abundant number, since it is smaller than the sum of its proper divisors (23902060).

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

14563220 is a wasteful number, since it uses less digits than its factorization.

14563220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 14563220 is about 3816.1787169890. The cubic root of 14563220 is about 244.2038295010.

Adding to 14563220 its reverse (2236541), we get a palindrome (16799761).

The spelling of 14563220 in words is "fourteen million, five hundred sixty-three thousand, two hundred twenty".