440045505 has 24 divisors (see below), whose sum is σ = 768243840. Its totient is φ = 232999200.

The previous prime is 440045429. The next prime is 440045509. The reversal of 440045505 is 505540044.

It is not a de Polignac number, because 440045505 - 2¹³ = 440037313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (440045509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28921 + ... + 41430.

It is an arithmetic number, because the mean of its divisors is an integer number (32010160).

Almost surely, 2^440045505 is an apocalyptic number.

440045505 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

440045505 is a deficient number, since it is larger than the sum of its proper divisors (328198335).

440045505 is a wasteful number, since it uses less digits than its factorization.

440045505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70501 (or 70498 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 440045505 is about 20977.2616182380. The cubic root of 440045505 is about 760.6167114532.

Adding to 440045505 its reverse (505540044), we get a palindrome (945585549).

The spelling of 440045505 in words is "four hundred forty million, forty-five thousand, five hundred five".