2002441021 has 16 divisors (see below), whose sum is σ = 2311766784. Its totient is φ = 1698971904.

The previous prime is 2002440971. The next prime is 2002441043. The reversal of 2002441021 is 1201442002.

It is not a de Polignac number, because 2002441021 - 2⁷ = 2002440893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002440986 and 2002441004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002441081) 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, 958440 + ... + 960526.

It is an arithmetic number, because the mean of its divisors is an integer number (144485424).

Almost surely, 2^2002441021 is an apocalyptic number.

It is an amenable number.

2002441021 is a deficient number, since it is larger than the sum of its proper divisors (309325763).

2002441021 is a wasteful number, since it uses less digits than its factorization.

2002441021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2002441021 is about 44748.6426721526. The cubic root of 2002441021 is about 1260.4334237890.

Adding to 2002441021 its reverse (1201442002), we get a palindrome (3203883023).

The spelling of 2002441021 in words is "two billion, two million, four hundred forty-one thousand, twenty-one".