22740472841 has 4 divisors (see below), whose sum is σ = 24078147732. Its totient is φ = 21402797952.

The previous prime is 22740472831. The next prime is 22740472847. The reversal of 22740472841 is 14827404722.

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 15185386441 + 7555086400 = 123229^2 + 86920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22740472841 is a prime.

It is a super-2 number, since 2×22740472841² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22740472847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668837420 + ... + 668837453.

It is an arithmetic number, because the mean of its divisors is an integer number (6019536933).

Almost surely, 2^22740472841 is an apocalyptic number.

It is an amenable number.

22740472841 is a deficient number, since it is larger than the sum of its proper divisors (1337674891).

22740472841 is a wasteful number, since it uses less digits than its factorization.

22740472841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337674890.

The product of its (nonzero) digits is 200704, while the sum is 41.

The spelling of 22740472841 in words is "twenty-two billion, seven hundred forty million, four hundred seventy-two thousand, eight hundred forty-one".