324253021 has 6 divisors (see below), whose sum is σ = 326437566. Its totient is φ = 322083000.

The previous prime is 324253009. The next prime is 324253037. The reversal of 324253021 is 120352423.

It can be written as a sum of positive squares in only one way, i.e., 296321796 + 27931225 = 17214^2 + 5285^2 .

It is not a de Polignac number, because 324253021 - 2¹⁹ = 323728733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 324252983 and 324253001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324253001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15691 + ... + 29911.

It is an arithmetic number, because the mean of its divisors is an integer number (54406261).

Almost surely, 2^324253021 is an apocalyptic number.

It is an amenable number.

324253021 is a deficient number, since it is larger than the sum of its proper divisors (2184545).

324253021 is an equidigital number, since it uses as much as digits as its factorization.

324253021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14523 (or 14372 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 324253021 is about 18007.0269894839. The cubic root of 324253021 is about 687.0072871245.

The spelling of 324253021 in words is "three hundred twenty-four million, two hundred fifty-three thousand, twenty-one".