5440721 has 8 divisors (see below), whose sum is σ = 6392064. Its totient is φ = 4565520.

The previous prime is 5440709. The next prime is 5440723. The reversal of 5440721 is 1270445.

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 5440721 - 2⁶ = 5440657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5440723) 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, 18881 + ... + 19166.

It is an arithmetic number, because the mean of its divisors is an integer number (799008).

Almost surely, 2^5440721 is an apocalyptic number.

It is an amenable number.

5440721 is a deficient number, since it is larger than the sum of its proper divisors (951343).

5440721 is a wasteful number, since it uses less digits than its factorization.

5440721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38071.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 5440721 is about 2332.5353159170. The cubic root of 5440721 is about 175.8809564308.

The spelling of 5440721 in words is "five million, four hundred forty thousand, seven hundred twenty-one".