5441640218 has 12 divisors (see below), whose sum is σ = 9495107082. Its totient is φ = 2332131480.

The previous prime is 5441640181. The next prime is 5441640227. The reversal of 5441640218 is 8120461445.

It can be written as a sum of positive squares in only one way, i.e., 4182596929 + 1259043289 = 64673^2 + 35483^2 .

It is a super-2 number, since 2×5441640218² = 59222896524310175048, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27763373 + ... + 27763568.

Almost surely, 2^5441640218 is an apocalyptic number.

5441640218 is a deficient number, since it is larger than the sum of its proper divisors (4053466864).

5441640218 is a wasteful number, since it uses less digits than its factorization.

5441640218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55526957 (or 55526950 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 5441640218 is about 73767.4739841348. The cubic root of 5441640218 is about 1758.9086099046.

The spelling of 5441640218 in words is "five billion, four hundred forty-one million, six hundred forty thousand, two hundred eighteen".