2440982581 has 2 divisors, whose sum is σ = 2440982582. Its totient is φ = 2440982580.

The previous prime is 2440982549. The next prime is 2440982597. The reversal of 2440982581 is 1852890442.

2440982581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1865462481 + 575520100 = 43191^2 + 23990^2 .

It is a cyclic number.

It is not a de Polignac number, because 2440982581 - 2⁵ = 2440982549 is a prime.

It is a super-2 number, since 2×2440982581² = 11916791921490843122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2440982521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1220491290 + 1220491291.

It is an arithmetic number, because the mean of its divisors is an integer number (1220491291).

Almost surely, 2^2440982581 is an apocalyptic number.

It is an amenable number.

2440982581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440982581 is an equidigital number, since it uses as much as digits as its factorization.

2440982581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 2440982581 is about 49406.3010252741. The cubic root of 2440982581 is about 1346.4437872970.

The spelling of 2440982581 in words is "two billion, four hundred forty million, nine hundred eighty-two thousand, five hundred eighty-one".