14020321 has 6 divisors (see below), whose sum is σ = 16309410. Its totient is φ = 12017376.

The previous prime is 14020313. The next prime is 14020327. The reversal of 14020321 is 12302041.

It can be written as a sum of positive squares in only one way, i.e., 10368400 + 3651921 = 3220^2 + 1911^2 .

It is not a de Polignac number, because 14020321 - 2³ = 14020313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14020327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143016 + ... + 143113.

It is an arithmetic number, because the mean of its divisors is an integer number (2718235).

Almost surely, 2^14020321 is an apocalyptic number.

It is an amenable number.

14020321 is a deficient number, since it is larger than the sum of its proper divisors (2289089).

14020321 is an equidigital number, since it uses as much as digits as its factorization.

14020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286143 (or 286136 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 14020321 is about 3744.3719099470. The cubic root of 14020321 is about 241.1307807594.

Adding to 14020321 its reverse (12302041), we get a palindrome (26322362).

It can be divided in two parts, 14020 and 321, that added together give a palindrome (14341).

The spelling of 14020321 in words is "fourteen million, twenty thousand, three hundred twenty-one".