22740299845 has 4 divisors (see below), whose sum is σ = 27288359820. Its totient is φ = 18192239872.

The previous prime is 22740299839. The next prime is 22740299851. The reversal of 22740299845 is 54899204722.

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

It is an interprime number because it is at equal distance from previous prime (22740299839) and next prime (22740299851).

It can be written as a sum of positive squares in 2 ways, for example, as 6196680961 + 16543618884 = 78719^2 + 128622^2 .

It is a cyclic number.

It is not a de Polignac number, because 22740299845 - 2³ = 22740299837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22740299792 and 22740299801.

It is a congruent number.

It is an unprimeable number.

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, 2274029980 + ... + 2274029989.

It is an arithmetic number, because the mean of its divisors is an integer number (6822089955).

Almost surely, 2^22740299845 is an apocalyptic number.

It is an amenable number.

22740299845 is a deficient number, since it is larger than the sum of its proper divisors (4548059975).

22740299845 is an equidigital number, since it uses as much as digits as its factorization.

22740299845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4548059974.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 22740299845 in words is "twenty-two billion, seven hundred forty million, two hundred ninety-nine thousand, eight hundred forty-five".