14022720 has 140 divisors (see below), whose sum is σ = 49973484. Its totient is φ = 3732480.

The previous prime is 14022683. The next prime is 14022731. The reversal of 14022720 is 2722041.

It can be written as a sum of positive squares in 2 ways, for example, as 5308416 + 8714304 = 2304^2 + 2952^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 14022693 and 14022702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25650 + ... + 26190.

Almost surely, 2^14022720 is an apocalyptic number.

14022720 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 14022720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24986742).

14022720 is an abundant number, since it is smaller than the sum of its proper divisors (35950764).

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

14022720 is an equidigital number, since it uses as much as digits as its factorization.

14022720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 14022720 is about 3744.6922436964. The cubic root of 14022720 is about 241.1445331728.

Adding to 14022720 its reverse (2722041), we get a palindrome (16744761).

The spelling of 14022720 in words is "fourteen million, twenty-two thousand, seven hundred twenty".