2021836441 has 2 divisors, whose sum is σ = 2021836442. Its totient is φ = 2021836440.

The previous prime is 2021836381. The next prime is 2021836451. The reversal of 2021836441 is 1446381202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1482250000 + 539586441 = 38500^2 + 23229^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021836441 - 2⁹ = 2021835929 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021836451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010918220 + 1010918221.

It is an arithmetic number, because the mean of its divisors is an integer number (1010918221).

Almost surely, 2^2021836441 is an apocalyptic number.

It is an amenable number.

2021836441 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021836441 is an equidigital number, since it uses as much as digits as its factorization.

2021836441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 2021836441 is about 44964.8356051704. The cubic root of 2021836441 is about 1264.4898276567.

The spelling of 2021836441 in words is "two billion, twenty-one million, eight hundred thirty-six thousand, four hundred forty-one".