5440444247 has 4 divisors (see below), whose sum is σ = 6217650576. Its totient is φ = 4663237920.

The previous prime is 5440444171. The next prime is 5440444259. The reversal of 5440444247 is 7424440445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7424440445 = 5 ⋅1484888089.

It is a cyclic number.

It is not a de Polignac number, because 5440444247 - 2²² = 5436249943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5440444247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5440444267) 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, 388603154 + ... + 388603167.

It is an arithmetic number, because the mean of its divisors is an integer number (1554412644).

Almost surely, 2^5440444247 is an apocalyptic number.

5440444247 is a deficient number, since it is larger than the sum of its proper divisors (777206329).

5440444247 is an equidigital number, since it uses as much as digits as its factorization.

5440444247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777206328.

The product of its (nonzero) digits is 286720, while the sum is 38.

The square root of 5440444247 is about 73759.3671813960. The cubic root of 5440444247 is about 1758.7797420305.

The spelling of 5440444247 in words is "five billion, four hundred forty million, four hundred forty-four thousand, two hundred forty-seven".