14220444 has 96 divisors (see below), whose sum is σ = 40370176. Its totient is φ = 3810240.

The previous prime is 14220439. The next prime is 14220533. The reversal of 14220444 is 44402241.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 14220444.

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, 111909 + ... + 112035.

Almost surely, 2^14220444 is an apocalyptic number.

14220444 is a gapful number since it is divisible by the number (14) 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 14220444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20185088).

14220444 is an abundant number, since it is smaller than the sum of its proper divisors (26149732).

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

14220444 is a wasteful number, since it uses less digits than its factorization.

14220444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 14220444 is about 3771.0003977725. Note that the first 3 decimals coincide. The cubic root of 14220444 is about 242.2726476519.

Adding to 14220444 its reverse (44402241), we get a palindrome (58622685).

The spelling of 14220444 in words is "fourteen million, two hundred twenty thousand, four hundred forty-four".