2021434441 has 8 divisors (see below), whose sum is σ = 2183888840. Its totient is φ = 1859974272.

The previous prime is 2021434417. The next prime is 2021434451. The reversal of 2021434441 is 1444341202.

It can be written as a sum of positive squares in 4 ways, for example, as 94575625 + 1926858816 = 9725^2 + 43896^2 .

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

It is not a de Polignac number, because 2021434441 - 2⁹ = 2021433929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021434451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244326 + ... + 252463.

It is an arithmetic number, because the mean of its divisors is an integer number (272986105).

Almost surely, 2^2021434441 is an apocalyptic number.

It is an amenable number.

2021434441 is a deficient number, since it is larger than the sum of its proper divisors (162454399).

2021434441 is a wasteful number, since it uses less digits than its factorization.

2021434441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497115.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 2021434441 is about 44960.3652231607. The cubic root of 2021434441 is about 1264.4060162936.

Adding to 2021434441 its reverse (1444341202), we get a palindrome (3465775643).

The spelling of 2021434441 in words is "two billion, twenty-one million, four hundred thirty-four thousand, four hundred forty-one".