5440456321 has 8 divisors (see below), whose sum is σ = 5628761600. Its totient is φ = 5252951520.

The previous prime is 5440456313. The next prime is 5440456339. The reversal of 5440456321 is 1236540445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5440456321 - 2³ = 5440456313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5440456921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186276 + ... + 213493.

It is an arithmetic number, because the mean of its divisors is an integer number (703595200).

Almost surely, 2^5440456321 is an apocalyptic number.

It is an amenable number.

5440456321 is a deficient number, since it is larger than the sum of its proper divisors (188305279).

5440456321 is a wasteful number, since it uses less digits than its factorization.

5440456321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400239.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 5440456321 is about 73759.4490285821. The cubic root of 5440456321 is about 1758.7810431186.

Adding to 5440456321 its reverse (1236540445), we get a palindrome (6676996766).

The spelling of 5440456321 in words is "five billion, four hundred forty million, four hundred fifty-six thousand, three hundred twenty-one".