13324021 has 8 divisors (see below), whose sum is σ = 13923000. Its totient is φ = 12734400.

The previous prime is 13324019. The next prime is 13324043. The reversal of 13324021 is 12042331.

It is a happy number.

13324021 is digitally balanced in base 3, 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 4 ways, for example, as 7128900 + 6195121 = 2670^2 + 2489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13324021 - 2¹ = 13324019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13323986 and 13324004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13325021) 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, 655 + ... + 5203.

It is an arithmetic number, because the mean of its divisors is an integer number (1740375).

Almost surely, 2^13324021 is an apocalyptic number.

It is an amenable number.

13324021 is a deficient number, since it is larger than the sum of its proper divisors (598979).

13324021 is a wasteful number, since it uses less digits than its factorization.

13324021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4679.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 13324021 is about 3650.2083502178. The cubic root of 13324021 is about 237.0710024820.

Adding to 13324021 its reverse (12042331), we get a palindrome (25366352).

The spelling of 13324021 in words is "thirteen million, three hundred twenty-four thousand, twenty-one".