2041021 has 8 divisors (see below), whose sum is σ = 2124864. Its totient is φ = 1958880.

The previous prime is 2041001. The next prime is 2041027. The reversal of 2041021 is 1201402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2041021 - 2⁵ = 2040989 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2040989 and 2041007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2041027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2376 + ... + 3118.

It is an arithmetic number, because the mean of its divisors is an integer number (265608).

2^2041021 is an apocalyptic number.

It is an amenable number.

2041021 is a deficient number, since it is larger than the sum of its proper divisors (83843).

2041021 is an equidigital number, since it uses as much as digits as its factorization.

2041021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2041021 is about 1428.6430624897. The cubic root of 2041021 is about 126.8476690544.

Adding to 2041021 its reverse (1201402), we get a palindrome (3242423).

It can be divided in two parts, 204 and 1021, that added together give a triangular number (1225 = T₄₉).

The spelling of 2041021 in words is "two million, forty-one thousand, twenty-one".