2044718021 has 2 divisors, whose sum is σ = 2044718022. Its totient is φ = 2044718020.

The previous prime is 2044717943. The next prime is 2044718047. The reversal of 2044718021 is 1208174402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1366115521 + 678602500 = 36961^2 + 26050^2 .

It is a cyclic number.

It is not a de Polignac number, because 2044718021 - 2³⁰ = 970976197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2044715021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022359010 + 1022359011.

It is an arithmetic number, because the mean of its divisors is an integer number (1022359011).

Almost surely, 2^2044718021 is an apocalyptic number.

It is an amenable number.

2044718021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2044718021 is an equidigital number, since it uses as much as digits as its factorization.

2044718021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 2044718021 is about 45218.5583693244. The cubic root of 2044718021 is about 1269.2421173092.

The spelling of 2044718021 in words is "two billion, forty-four million, seven hundred eighteen thousand, twenty-one".