2021240330 has 64 divisors (see below), whose sum is σ = 4131855360. Its totient is φ = 707226624.

The previous prime is 2021240321. The next prime is 2021240339. The reversal of 2021240330 is 330421202.

It is an interprime number because it is at equal distance from previous prime (2021240321) and next prime (2021240339).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 2021240299 and 2021240308.

It is not an unprimeable number, because it can be changed into a prime (2021240339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165287 + ... + 177093.

It is an arithmetic number, because the mean of its divisors is an integer number (64560240).

Almost surely, 2^2021240330 is an apocalyptic number.

2021240330 is an abundant number, since it is smaller than the sum of its proper divisors (2110615030).

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

2021240330 is a wasteful number, since it uses less digits than its factorization.

2021240330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11903.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2021240330 is about 44958.2064811309. The cubic root of 2021240330 is about 1264.3655428939.

Adding to 2021240330 its reverse (330421202), we get a palindrome (2351661532).

The spelling of 2021240330 in words is "two billion, twenty-one million, two hundred forty thousand, three hundred thirty".