2440220281 has 2 divisors, whose sum is σ = 2440220282. Its totient is φ = 2440220280.

The previous prime is 2440220267. The next prime is 2440220323. The reversal of 2440220281 is 1820220442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2246760000 + 193460281 = 47400^2 + 13909^2 .

It is a cyclic number.

It is not a de Polignac number, because 2440220281 - 2²⁹ = 1903349369 is a prime.

It is a super-2 number, since 2×2440220281² = 11909350039607437922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2446220281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1220110140 + 1220110141.

It is an arithmetic number, because the mean of its divisors is an integer number (1220110141).

Almost surely, 2^2440220281 is an apocalyptic number.

It is an amenable number.

2440220281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440220281 is an equidigital number, since it uses as much as digits as its factorization.

2440220281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 2440220281 is about 49398.5858198390. The cubic root of 2440220281 is about 1346.3036113735.

The spelling of 2440220281 in words is "two billion, four hundred forty million, two hundred twenty thousand, two hundred eighty-one".