6440059 has 8 divisors (see below), whose sum is σ = 7054560. Its totient is φ = 5851776.

The previous prime is 6440041. The next prime is 6440089. The reversal of 6440059 is 9500446.

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 6440059 - 2⁹ = 6439547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6440029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6039 + ... + 7024.

It is an arithmetic number, because the mean of its divisors is an integer number (881820).

Almost surely, 2^6440059 is an apocalyptic number.

6440059 is a deficient number, since it is larger than the sum of its proper divisors (614501).

6440059 is a wasteful number, since it uses less digits than its factorization.

6440059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13109.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 6440059 is about 2537.7271326918. The cubic root of 6440059 is about 186.0501175310.

The spelling of 6440059 in words is "six million, four hundred forty thousand, fifty-nine".