5440644206 has 24 divisors (see below), whose sum is σ = 8494002720. Its totient is φ = 2613192192.

The previous prime is 5440644193. The next prime is 5440644211. The reversal of 5440644206 is 6024460445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203726 + ... + 228878.

It is an arithmetic number, because the mean of its divisors is an integer number (353916780).

Almost surely, 2^5440644206 is an apocalyptic number.

5440644206 is a deficient number, since it is larger than the sum of its proper divisors (3053358514).

5440644206 is a wasteful number, since it uses less digits than its factorization.

5440644206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25308 (or 25271 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

The square root of 5440644206 is about 73760.7226510153. The cubic root of 5440644206 is about 1758.8012892617.

The spelling of 5440644206 in words is "five billion, four hundred forty million, six hundred forty-four thousand, two hundred six".