324214021 has 8 divisors (see below), whose sum is σ = 343730520. Its totient is φ = 304747008.

The previous prime is 324214013. The next prime is 324214057. The reversal of 324214021 is 120412423.

It can be written as a sum of positive squares in 4 ways, for example, as 112656996 + 211557025 = 10614^2 + 14545^2 .

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 324214021 - 2³ = 324214013 is a prime.

It is a super-2 number, since 2×324214021² = 210229462825976882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 324214021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324214001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1585 + ... + 25513.

It is an arithmetic number, because the mean of its divisors is an integer number (42966315).

Almost surely, 2^324214021 is an apocalyptic number.

It is an amenable number.

324214021 is a deficient number, since it is larger than the sum of its proper divisors (19516499).

324214021 is a wasteful number, since it uses less digits than its factorization.

324214021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24743.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 324214021 is about 18005.9440463420. The cubic root of 324214021 is about 686.9797424225.

Adding to 324214021 its reverse (120412423), we get a palindrome (444626444).

The spelling of 324214021 in words is "three hundred twenty-four million, two hundred fourteen thousand, twenty-one".