444042686 has 8 divisors (see below), whose sum is σ = 705244320. Its totient is φ = 208961248.

The previous prime is 444042649. The next prime is 444042691. The reversal of 444042686 is 686240444.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6530006 + ... + 6530073.

It is an arithmetic number, because the mean of its divisors is an integer number (88155540).

Almost surely, 2^444042686 is an apocalyptic number.

444042686 is a deficient number, since it is larger than the sum of its proper divisors (261201634).

444042686 is a wasteful number, since it uses less digits than its factorization.

444042686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13060098.

The product of its (nonzero) digits is 147456, while the sum is 38.

The square root of 444042686 is about 21072.3203753170. The cubic root of 444042686 is about 762.9128097393.

The spelling of 444042686 in words is "four hundred forty-four million, forty-two thousand, six hundred eighty-six".