444540505 has 8 divisors (see below), whose sum is σ = 540201600. Its totient is φ = 351130416.

The previous prime is 444540413. The next prime is 444540517. The reversal of 444540505 is 505045444.

It is a happy number.

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 444540505 - 2⁹ = 444539993 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562315 + ... + 563104.

It is an arithmetic number, because the mean of its divisors is an integer number (67525200).

Almost surely, 2^444540505 is an apocalyptic number.

It is an amenable number.

444540505 is a deficient number, since it is larger than the sum of its proper divisors (95661095).

444540505 is a wasteful number, since it uses less digits than its factorization.

444540505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125503.

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 444540505 is about 21084.1292208144. The cubic root of 444540505 is about 763.1978053513.

Adding to 444540505 its reverse (505045444), we get a palindrome (949585949).

The spelling of 444540505 in words is "four hundred forty-four million, five hundred forty thousand, five hundred five".