2443020845 has 4 divisors (see below), whose sum is σ = 2931625020. Its totient is φ = 1954416672.

The previous prime is 2443020841. The next prime is 2443020851. The reversal of 2443020845 is 5480203442.

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 276956164 + 2166064681 = 16642^2 + 46541^2 .

It is a cyclic number.

It is not a de Polignac number, because 2443020845 - 2² = 2443020841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2443020841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244302080 + ... + 244302089.

It is an arithmetic number, because the mean of its divisors is an integer number (732906255).

Almost surely, 2^2443020845 is an apocalyptic number.

It is an amenable number.

2443020845 is a deficient number, since it is larger than the sum of its proper divisors (488604175).

2443020845 is an equidigital number, since it uses as much as digits as its factorization.

2443020845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488604174.

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 2443020845 is about 49426.9242923328. The cubic root of 2443020845 is about 1346.8184512266.

The spelling of 2443020845 in words is "two billion, four hundred forty-three million, twenty thousand, eight hundred forty-five".