2040533021 has 16 divisors (see below), whose sum is σ = 2169742080. Its totient is φ = 1914865920.

The previous prime is 2040533009. The next prime is 2040533071. The reversal of 2040533021 is 1203350402.

It is a happy number.

It is not a de Polignac number, because 2040533021 - 2⁶ = 2040532957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2040532984 and 2040533002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040533071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 614261 + ... + 617573.

It is an arithmetic number, because the mean of its divisors is an integer number (135608880).

Almost surely, 2^2040533021 is an apocalyptic number.

It is an amenable number.

2040533021 is a deficient number, since it is larger than the sum of its proper divisors (129209059).

2040533021 is a wasteful number, since it uses less digits than its factorization.

2040533021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2040533021 is about 45172.2594188070. The cubic root of 2040533021 is about 1268.3755909275.

Adding to 2040533021 its reverse (1203350402), we get a palindrome (3243883423).

The spelling of 2040533021 in words is "two billion, forty million, five hundred thirty-three thousand, twenty-one".