2443778041 has 4 divisors (see below), whose sum is σ = 2444203684. Its totient is φ = 2443352400.

The previous prime is 2443778027. The next prime is 2443778059. The reversal of 2443778041 is 1408773442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1631756025 + 812022016 = 40395^2 + 28496^2 .

It is a cyclic number.

It is not a de Polignac number, because 2443778041 - 2³¹ = 296294393 is a prime.

It is a super-2 number, since 2×2443778041² = 11944102227347595362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2443777985 and 2443778003.

It is not an unprimeable number, because it can be changed into a prime (2443778011) 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 in 3 ways as a sum of consecutive naturals, for example, 204090 + ... + 215731.

It is an arithmetic number, because the mean of its divisors is an integer number (611050921).

Almost surely, 2^2443778041 is an apocalyptic number.

It is an amenable number.

2443778041 is a deficient number, since it is larger than the sum of its proper divisors (425643).

2443778041 is an equidigital number, since it uses as much as digits as its factorization.

2443778041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425642.

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 2443778041 is about 49434.5834512642. The cubic root of 2443778041 is about 1346.9575822815.

The spelling of 2443778041 in words is "two billion, four hundred forty-three million, seven hundred seventy-eight thousand, forty-one".