2034004021 has 4 divisors (see below), whose sum is σ = 2324576032. Its totient is φ = 1743432012.

The previous prime is 2034003991. The next prime is 2034004031. The reversal of 2034004021 is 1204004302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1204004302 = 2 ⋅602002151.

It is not a de Polignac number, because 2034004021 - 2⁹ = 2034003509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2034003986 and 2034004004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2034004031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145285995 + ... + 145286008.

It is an arithmetic number, because the mean of its divisors is an integer number (581144008).

Almost surely, 2^2034004021 is an apocalyptic number.

It is an amenable number.

2034004021 is a deficient number, since it is larger than the sum of its proper divisors (290572011).

2034004021 is an equidigital number, since it uses as much as digits as its factorization.

2034004021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290572010.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2034004021 is about 45099.9337139202. The cubic root of 2034004021 is about 1267.0213577879.

Adding to 2034004021 its reverse (1204004302), we get a palindrome (3238008323).

The spelling of 2034004021 in words is "two billion, thirty-four million, four thousand, twenty-one".