2021330 has 16 divisors (see below), whose sum is σ = 3668544. Its totient is φ = 801840.

The previous prime is 2021321. The next prime is 2021333. The reversal of 2021330 is 331202.

It is not an unprimeable number, because it can be changed into a prime (2021333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539 + ... + 2081.

It is an arithmetic number, because the mean of its divisors is an integer number (229284).

2^2021330 is an apocalyptic number.

2021330 is a deficient number, since it is larger than the sum of its proper divisors (1647214).

2021330 is a wasteful number, since it uses less digits than its factorization.

2021330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 2021330 is about 1421.7348557308. The cubic root of 2021330 is about 126.4384239991.

Adding to 2021330 its reverse (331202), we get a palindrome (2352532).

The spelling of 2021330 in words is "two million, twenty-one thousand, three hundred thirty".