324144020 has 24 divisors (see below), whose sum is σ = 704176200. Its totient is φ = 125186432.

The previous prime is 324144011. The next prime is 324144059. The reversal of 324144020 is 20441423.

It can be written as a sum of positive squares in 4 ways, for example, as 116726416 + 207417604 = 10804^2 + 14402^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 324143983 and 324144001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278855 + ... + 280014.

It is an arithmetic number, because the mean of its divisors is an integer number (29340675).

Almost surely, 2^324144020 is an apocalyptic number.

It is an amenable number.

324144020 is an abundant number, since it is smaller than the sum of its proper divisors (380032180).

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

324144020 is a wasteful number, since it uses less digits than its factorization.

324144020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558907 (or 558905 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 324144020 is about 18004.0001110864. Note that the first 3 decimals coincide. The cubic root of 324144020 is about 686.9302969665.

Adding to 324144020 its reverse (20441423), we get a palindrome (344585443).

The spelling of 324144020 in words is "three hundred twenty-four million, one hundred forty-four thousand, twenty".