4440720686 has 8 divisors (see below), whose sum is σ = 6841110360. Its totient is φ = 2160350568.

The previous prime is 4440720673. The next prime is 4440720689. The reversal of 4440720686 is 6860270444.

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

It is a super-2 number, since 2×4440720686² = 39440000422136621192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440720689) 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 3 ways as a sum of consecutive naturals, for example, 30004796 + ... + 30004943.

It is an arithmetic number, because the mean of its divisors is an integer number (855138795).

Almost surely, 2^4440720686 is an apocalyptic number.

4440720686 is a deficient number, since it is larger than the sum of its proper divisors (2400389674).

4440720686 is a wasteful number, since it uses less digits than its factorization.

4440720686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60009778.

The product of its (nonzero) digits is 258048, while the sum is 41.

The square root of 4440720686 is about 66638.7326260036. The cubic root of 4440720686 is about 1643.6820756850.

The spelling of 4440720686 in words is "four billion, four hundred forty million, seven hundred twenty thousand, six hundred eighty-six".