440163505 has 8 divisors (see below), whose sum is σ = 528533352. Its totient is φ = 351906048.

The previous prime is 440163497. The next prime is 440163517. The reversal of 440163505 is 505361044.

It can be written as a sum of positive squares in 4 ways, for example, as 62599744 + 377563761 = 7912^2 + 19431^2 .

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 440163505 - 2³ = 440163497 is a prime.

It is a super-2 number, since 2×440163505² = 387487822267770050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19224 + ... + 35353.

It is an arithmetic number, because the mean of its divisors is an integer number (66066669).

Almost surely, 2^440163505 is an apocalyptic number.

It is an amenable number.

440163505 is a deficient number, since it is larger than the sum of its proper divisors (88369847).

440163505 is a wasteful number, since it uses less digits than its factorization.

440163505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56195.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 440163505 is about 20980.0739989162. The cubic root of 440163505 is about 760.6846928700.

The spelling of 440163505 in words is "four hundred forty million, one hundred sixty-three thousand, five hundred five".