2021240324 has 12 divisors (see below), whose sum is σ = 3538109148. Its totient is φ = 1010352000.

The previous prime is 2021240321. The next prime is 2021240339. The reversal of 2021240324 is 4230421202.

It can be written as a sum of positive squares in 2 ways, for example, as 907816900 + 1113423424 = 30130^2 + 33368^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2021240296 and 2021240305.

It is not an unprimeable number, because it can be changed into a prime (2021240321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49577 + ... + 80624.

It is an arithmetic number, because the mean of its divisors is an integer number (294842429).

Almost surely, 2^2021240324 is an apocalyptic number.

It is an amenable number.

2021240324 is a deficient number, since it is larger than the sum of its proper divisors (1516868824).

2021240324 is a wasteful number, since it uses less digits than its factorization.

2021240324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134086 (or 134084 counting only the distinct ones).

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

The square root of 2021240324 is about 44958.2064144023. The cubic root of 2021240324 is about 1264.3655416428.

Adding to 2021240324 its reverse (4230421202), we get a palindrome (6251661526).

The spelling of 2021240324 in words is "two billion, twenty-one million, two hundred forty thousand, three hundred twenty-four".