14221648 has 40 divisors (see below), whose sum is σ = 32234048. Its totient is φ = 5951232.

The previous prime is 14221643. The next prime is 14221657. The reversal of 14221648 is 84612241.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14221643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3340 + ... + 6292.

Almost surely, 2^14221648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14221648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16117024).

14221648 is an abundant number, since it is smaller than the sum of its proper divisors (18012400).

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

14221648 is a wasteful number, since it uses less digits than its factorization.

14221648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011 (or 3005 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 14221648 is about 3771.1600337297. The cubic root of 14221648 is about 242.2794849451.

Adding to 14221648 its reverse (84612241), we get a palindrome (98833889).

The spelling of 14221648 in words is "fourteen million, two hundred twenty-one thousand, six hundred forty-eight".