2021024 has 24 divisors (see below), whose sum is σ = 4016628. Its totient is φ = 1000960.

The previous prime is 2021017. The next prime is 2021029. The reversal of 2021024 is 4201202.

It can be written as a sum of positive squares in 2 ways, for example, as 2016400 + 4624 = 1420^2 + 68^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2020996 and 2021014.

It is not an unprimeable number, because it can be changed into a prime (2021029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4154 + ... + 4614.

2^2021024 is an apocalyptic number.

It is an amenable number.

2021024 is a deficient number, since it is larger than the sum of its proper divisors (1995604).

2021024 is a wasteful number, since it uses less digits than its factorization.

2021024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2021024 is about 1421.6272366552. The cubic root of 2021024 is about 126.4320433636.

Adding to 2021024 its reverse (4201202), we get a palindrome (6222226).

The spelling of 2021024 in words is "two million, twenty-one thousand, twenty-four".