14247220 has 48 divisors (see below), whose sum is σ = 33113808. Its totient is φ = 5114880.

The previous prime is 14247203. The next prime is 14247223. The reversal of 14247220 is 2274241.

14247220 = T₈₅₉ + T₈₆₀ + ... + T₈₉₅.

It is a happy number.

14247220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 79524 + 14167696 = 282^2 + 3764^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14247191 and 14247200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14247223) 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, 8880 + ... + 10360.

It is an arithmetic number, because the mean of its divisors is an integer number (689871).

Almost surely, 2^14247220 is an apocalyptic number.

14247220 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 14247220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16556904).

14247220 is an abundant number, since it is smaller than the sum of its proper divisors (18866588).

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

14247220 is a wasteful number, since it uses less digits than its factorization.

14247220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 14247220 is about 3774.5489796796. The cubic root of 14247220 is about 242.4246125531.

The spelling of 14247220 in words is "fourteen million, two hundred forty-seven thousand, two hundred twenty".