5440940669 has 2 divisors, whose sum is σ = 5440940670. Its totient is φ = 5440940668.

The previous prime is 5440940663. The next prime is 5440940753. The reversal of 5440940669 is 9660490445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3095475769 + 2345464900 = 55637^2 + 48430^2 .

It is a cyclic number.

It is not a de Polignac number, because 5440940669 - 2⁸ = 5440940413 is a prime.

It is a super-2 number, since 2×5440940669² = 59207670727156335122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5440940663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720470334 + 2720470335.

It is an arithmetic number, because the mean of its divisors is an integer number (2720470335).

Almost surely, 2^5440940669 is an apocalyptic number.

It is an amenable number.

5440940669 is a deficient number, since it is larger than the sum of its proper divisors (1).

5440940669 is an equidigital number, since it uses as much as digits as its factorization.

5440940669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 47.

The square root of 5440940669 is about 73762.7322501004. The cubic root of 5440940669 is about 1758.8332346231.

The spelling of 5440940669 in words is "five billion, four hundred forty million, nine hundred forty thousand, six hundred sixty-nine".